A salary can sit below midpoint without proving the employee is underpaid. A pay increase can fit this year's cash budget while creating a larger annual commitment. A lower health-plan premium can still produce a higher total cost under some claim assumptions.
Total Rewards accounts for 15% of the current PHR outline. This lesson uses seven original, fictional worked examples to connect compensation and benefits calculations to HR decisions. Dollar figures are teaching inputs, not market benchmarks, recommended pay levels, tax advice or legal advice. HRCI's PHR outline defines the domain.
A rewards decision has more than one dimension
Evaluate a proposal against a clear objective:
- External competitiveness: Are market comparisons matched to the work, location, relevant labor market and data date?
- Internal consistency: Do comparable responsibilities and documented criteria produce explainable differences?
- Employee value: Do employees understand and use the offering? Employer cost does not equal perceived value.
- Affordability: What is the current-period cost, ongoing run rate and exposure under different assumptions?
- Compliance and administration: Are classification, payroll, plan terms, notices and equitable access handled correctly?
Base pay, variable pay, benefits, recognition, flexibility and development opportunities are different tools. A recognition program is unlikely to repair an uncorrected payroll error. A general pay increase is unlikely to fix an inaccessible promotion process by itself.
Example 1: compa-ratio
Question: How does a salary compare with its assigned range midpoint?
Assume one employee has annual base pay of $57,000 and a properly assigned salary-range midpoint of $60,000. Both figures use the same full-time basis.
Compa-ratio = base salary ÷ range midpoint.
$57,000 ÷ $60,000 = 0.95, or 95%.
The salary is 5% below the midpoint when the difference is expressed as a percentage of the midpoint. Reaching midpoint would require $3,000, which is 5.26% of the current salary, not 5%:
$3,000 ÷ $57,000 × 100 = 5.2632%.
What HR can conclude: The employee's salary is below this range's midpoint.
What HR cannot conclude from this alone: That the employee is underpaid relative to the external market, that the midpoint is current, that the employee belongs in the correct range, or that a particular increase is deserved. Review job match, range design, relevant experience, performance criteria and comparable employees before deciding.
Common error: Dividing by the salary and labeling the result a compa-ratio. The denominator is the midpoint.
Example 2: range penetration
Question: Where is the same salary between the minimum and maximum?
Assume the range runs from $48,000 to $72,000, with the employee still earning $57,000.
Range penetration = (salary − minimum) ÷ (maximum − minimum).
($57,000 − $48,000) ÷ ($72,000 − $48,000) = $9,000 ÷ $24,000 = 37.5%.
The employee has moved 37.5% of the way from the minimum to the maximum. This is not the percentage of the maximum they earn, and it is not their position in a distribution of employee salaries.
Why it differs from compa-ratio: Compa-ratio compares a salary with one reference point. Range penetration compares its distance from the minimum with the entire range width. Here, 95% compa-ratio and 37.5% penetration describe the same salary correctly.
What to check next: A negative result means pay is below the minimum; a result above 100% means it exceeds the maximum. Neither result explains the cause. Check data quality, range assignment, promotions, market adjustments and any deliberate exception policy.
Example 3: a salary increase and the midpoint gap
Question: Does a 4% increase bring this employee to midpoint?
Increase = $57,000 × 4% = $2,280.
New salary = $57,000 + $2,280 = $59,280.
New compa-ratio = $59,280 ÷ $60,000 = 98.8%.
New range penetration = ($59,280 − $48,000) ÷ $24,000 = 47%.
The employee remains $720 below midpoint. A compa-ratio rising from 95% to 98.8% is an increase of 3.8 percentage points, not four percentage points. The 4% increase was applied to salary, not to the midpoint.
Decision implication: State the objective before choosing the percentage. “Award a 4% merit increase” and “move salary exactly to midpoint” are different instructions. If the range also moves, recalculate using the new midpoint and endpoints instead of mixing old and new structures.
Example 4: salary-budget weighting and effective dates
Question: Do proposed 4% and 3% increases fit a 3.5% salary budget?
Assume 15 full-time employees, all employed for the full year, no turnover and no additional pay changes. Raises take effect July 1. Taxes, benefits, overtime effects and other payroll costs are excluded from this base-salary illustration.
| Group | Employees | Current salary each | Annual base payroll | Proposed increase | Annual increase cost |
|---|---|---|---|---|---|
| A | 10 | $50,000 | $500,000 | 4% | $20,000 |
| B | 5 | $80,000 | $400,000 | 3% | $12,000 |
| Total | 15 | $900,000 | $32,000 |
Weighted increase = $32,000 ÷ $900,000 × 100 = 3.5556%, or 3.56% rounded.
A 3.5% budget permits $900,000 × 3.5% = $31,500 in annualized increases. The proposal exceeds it by $500.
The simple average of 4% and 3% is 3.5%, but that treats the two payroll pools as equal. They are not.
Because raises begin halfway through the calendar year, the simplified current-year additional salary cost is $32,000 × 6/12 = $16,000. The new annual salary run rate is $932,000. A budget presented as $16,000 should not conceal the $32,000 annual commitment.
What HR should do: Confirm whether the budget is annualized or current-period, include relevant payroll load separately, then adjust allocation against consistent criteria. Do not choose one employee arbitrarily to absorb the $500 difference. Promotions and equity corrections may need separate funding and governance rather than being silently charged to a merit pool.
Example 5: build a turnover-cost estimate without inventing a benchmark
Question: What would one replacement cost under a transparent model?
Assume a fictional role is replaced once. The organization estimates the following incremental or allocated costs:
| Component | Assumption | Modeled cost | Cost type |
|---|---|---|---|
| Recruiting vendor and advertising | Actual planned charges | $2,500 | Incremental cash |
| Interview/selection time | 12 hours × $50 loaded hourly cost | $600 | Allocated employee time |
| New-hire onboarding time | 30 nonproductive hours × $40 loaded hourly cost | $1,200 | Allocated employee time |
| Trainer time | 20 hours × $45 loaded hourly cost | $900 | Allocated employee time |
| Temporary coverage premium | Cost above normal staffing baseline | $1,800 | Incremental cash |
| Post-onboarding ramp-up loss | Estimated contribution shortfall after the onboarding period | $4,500 | Modeled economic effect |
| Total | $2,500 + $600 + $1,200 + $900 + $1,800 + $4,500 | $11,500 | Mixed economic estimate |
Incremental cash is $4,300. Allocated employee time is $2,700. The remaining $4,500 is an estimate of lost contribution, not an invoice.
Assumptions that matter: The ramp-up estimate covers a different period from onboarding, and temporary coverage is counted only above baseline. Otherwise the model could count the same lost output or labor twice. Loaded time costs and lost contribution are assumptions to validate, not universal multipliers.
If a program were genuinely to prevent eight comparable departures, modeled avoided cost would be 8 × $11,500 = $92,000. Potential incremental cash avoidance would be 8 × $4,300 = $34,400, before the program's own cost and any replacement effects. Neither number is proven savings merely because turnover later falls.
What HR should do: Test which departures are preventable, which costs actually change, and whether the program plausibly caused the change. Present a range if ramp-up is uncertain. Do not label the full $92,000 as a guaranteed budget reduction.
Example 6: overtime with a nondiscretionary weekly bonus
Question: How does an earned bonus affect a nonexempt employee's regular rate?
Assume a covered, nonexempt hourly employee works 46 hours in one workweek at $24 per hour. They earn a $138 nondiscretionary production bonus attributable entirely to that same week. There are no other earnings or exclusions. The example uses federal weekly overtime only; state law or a contract may require more.
DOL explains that a nondiscretionary bonus generally belongs in the regular rate unless a statutory exclusion applies. Calling a payment “discretionary” does not settle its legal treatment. DOL Fact Sheet 56C describes the distinction.
- Straight-time earnings for all hours: 46 × $24 = $1,104.
- Include the bonus: $1,104 + $138 = $1,242.
- Regular rate: $1,242 ÷ 46 = $27 per hour.
- Overtime hours: 46 − 40 = 6.
- Additional half-time premium: 6 × $27 × 0.5 = $81.
- Total pay: $1,242 + $81 = $1,323.
Why half-time here? Step 1 already pays straight time for every hour, including the six overtime hours. Step 5 adds the remaining half of the regular rate required for those hours. Adding another 1.5 times the regular rate on top of all straight-time pay would overcount.
Alternative payroll path: Suppose payroll already paid 40 × $24 + 6 × $36 = $1,176, then separately paid the $138 bonus. That totals $1,314. The additional overtime adjustment is $9, giving the same $1,323 total:
Bonus rate per hour = $138 ÷ 46 = $3; additional premium = 6 × $3 × 0.5 = $9.
Boundary: A monthly or quarterly bonus can require allocation across the workweeks in which it was earned. Do not place the entire amount into the payment week's regular rate without checking the governing rules. This example does not address fluctuating-workweek pay, multiple rates or special industry arrangements.
Example 7: compare two health plans under the same assumptions
Question: Which fictional plan costs the employee less?
Assume single coverage for a full year. All modeled claims are covered, in network, subject to the stated deductible and coinsurance, and based on the same allowed amounts. No copays, separate drug terms, employer account contributions, tax effects or excluded services are included. This is a simplified comparison, not a recommendation for an individual.
| Feature | Plan A | Plan B |
|---|---|---|
| Employee monthly premium | $180 | $100 |
| Annual employee premium | $2,160 | $1,200 |
| Annual deductible | $1,000 | $2,500 |
| Employee coinsurance after deductible | 20% | 20% |
| In-network out-of-pocket maximum | $5,000 | $6,500 |
At $1,500 of allowed claims:
- Plan A cost sharing = $1,000 + 20% × $500 = $1,100. Premium plus cost sharing = $3,260.
- Plan B cost sharing = $1,500, all within its deductible. Total = $2,700.
- Plan B costs $560 less under this scenario.
At $6,000 of allowed claims:
- Plan A cost sharing = $1,000 + 20% × $5,000 = $2,000. Total = $4,160.
- Plan B cost sharing = $2,500 + 20% × $3,500 = $3,200. Total = $4,400.
- Plan A costs $240 less under this scenario.
At the modeled in-network maximum: Annual premium plus the stated out-of-pocket maximum equals $7,160 for A and $7,700 for B. These are not universal caps on every expense. Premiums, noncovered care and some out-of-network charges are outside the cost-sharing maximum. HealthCare.gov's glossary explains the terms.
What HR should communicate: Premium, likely utilization scenarios, network, formulary, service coverage, exposure to early-year bills and plan-specific limits. Do not reduce plan value to deductible alone. Use each plan's Summary of Benefits and Coverage and governing documents rather than substituting a generic calculator for actual terms. Tax-advantaged accounts and individual tax consequences require separate analysis.
Apply the calculations to a rewards recommendation
Suppose a fictional employer has a limited budget and complaints about starting pay, unpredictable shifts and benefits confusion. A useful recommendation separates the evidence:
- Audit job matching and starting-pay decisions before declaring a market-pay problem.
- Review scheduling practices and operational constraints rather than treating every complaint as a request for more money.
- Test whether employees understand existing benefits before buying another benefit.
- Check who can access flexibility, recognition and development opportunities, not only whether a policy exists.
- Specify an owner, cost, implementation condition and success measure for each proposal.
A pay comparison should also include applicable equity review. The Equal Pay Act evaluates substantially equal work rather than titles alone, and compensation encompasses more than salary. Other discrimination rules may also apply. EEOC's compensation-discrimination overview provides a federal starting point.
Practice with answers
1. A salary is $66,000 in a range with a $60,000 midpoint, $48,000 minimum and $72,000 maximum. Find compa-ratio and range penetration.
Compa-ratio = $66,000 ÷ $60,000 = 110%. Penetration = ($66,000 − $48,000) ÷ $24,000 = 75%. Being above midpoint is different from being above maximum.
2. A $100,000 annual salary increase pool starts October 1. What is the simplified added cost in that calendar year?
$100,000 × 3/12 = $25,000, assuming all changes begin that day and no other changes occur. The annualized commitment remains $100,000, excluding payroll load. Name the period before reporting a budget figure.
3. The weekly bonus in Example 6 is paid two weeks later. Does that automatically make it discretionary?
No. Timing does not decide whether the bonus meets the statutory exclusion. Its terms and circumstances matter. The payroll adjustment must relate to the applicable earning period under the governing rules.
4. A retention program costs $40,000 and turnover-cost modeling suggests $92,000 in avoided economic cost. Is ROI automatically 130%?
The arithmetic would be ($92,000 − $40,000) ÷ $40,000 = 130%, but the conclusion is conditional on valid attribution and cost assumptions. Mixed economic benefits are not the same as cash savings. Report those limitations instead of presenting a proven return.
Continue studying
- Review federal pay and leave boundaries in PHR employment laws.
- Connect retention measures to employee engagement analysis.
- Test your decisions with PHR practice questions.
- Place quantitative practice into the PHR study plan.
Primary sources and review date
Checked October 18, 2026. All example inputs and calculations are original fictional teaching material. They are not survey findings, benefit offers or salary-market data.
- HRCI PHR exam content outline, current document marked ©2026; outline effective 2024.
- DOL Fact Sheet 56C: Bonuses under the FLSA, December 2019, current agency reference checked for the regular-rate principles used here.
- EEOC equal pay and compensation discrimination, live agency reference.
- HealthCare.gov Summary of Benefits and Coverage and health coverage glossary, live federal references.