It depends on risk and alternatives. Many businesses look for a positive ROI and compare options on ROI plus payback time.

What if my ROI is negative?

A negative ROI means the return was less than the investment. The calculator will show a negative profit and ROI%.

Does ROI include time?

Basic ROI doesn’t account for time. For time-based growth, consider CAGR or compare ROI across the same time period.

Refund Fee Impact Calculator

Estimate how refunds affect fees and net revenue. Enter sales, refund rate and fee rate to see the expected fee loss on refunded orders.

Use this calculator when you need a fast, reliable answer without opening a spreadsheet. Enter your figures below and press Calculate. PercentNinja shows the key outputs you typically need for pricing decisions, VAT checks, ecommerce payouts or ad reporting.

When to use this

Comparing payment processors and marketplace fees
Estimating net payout before you ship an order
Protecting your margin by understanding fee impact

Calculate

Results are estimates for informational purposes only and may be rounded.

Tip: Press Enter to calculate.

Worked examples

Example 1

Question: Sales £10,000, refunds 3%, fee 5%.

Refunded = 10,000×0.03 = £300
Fee loss = 300×0.05 = £15

Example 2

Question: Sales £2,500, refunds 8%, fee 2.9%.

Refunded = £200
Fee loss = 200×0.029 = £5.80

Related calculators

Want the full list? Visit All Calculators.