PercentWise

PercentWise is a compact tool for everyday percent and ratio calculations. Pick a mode from the dropdown and enter two values to get instant results.

Everyday:

• X% of Y — what is a percent of a number

• A as % of B — part as percentage of whole

• Discount — price after a percent off

• Tip total — amount including tip

• Apply % change — value after a percent increase or decrease

Industrial / practical:

• Tolerance ±% — min and max from nominal and tolerance percent

• Efficiency % — output over input

• Yield % — good count over total

• Margin % — profit margin from cost and selling price

• Dilution — concentration after dilution factor