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Mentorship ROI Calculator

See what regrettable attrition is costing your organization, and model what a change in that number would be worth, using your own assumptions.

Step 1

Enter your numbers

500
5010,000
50
5500
$85,000
$30k$300k
12%
2%40%
40%
10%80%
15%
5%50%

This is your own assumption, not a verified MentorStack result. Set it based on your program design or industry research.

Step 2

Your estimated ROI

Estimated savings based on your assumptions

$459,000/year

Annual cost of regrettable attrition$3,060,000
Annual MentorStack cost (Starter)$7,200
Return on investment6,275%
Payback period< 1 month

Based on your inputs, your organization has approximately 24 regrettable departures per year, each costing an estimated $127,500 to replace.

Replacement-cost assumption based on SHRM research showing employee replacement costs 0.5–2× annual salary. The attrition-reduction percentage above is an assumption you set, not a verified MentorStack result. MentorStack launched in 2026 and has no customer case studies yet. Once you are live, the Retention report (Growth, with HRIS) shows the directional trend for participants against your baseline. It is not a causal measure.

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