How to Calculate Percentage of a Percentage
Simple math formula for nested or compound percentages:
STEP 01
Convert to Decimals
Divide both percentages by 100 (e.g. 20% = 0.20, 50% = 0.50).
STEP 02
Multiply Decimals
Multiply decimal values together (0.20 × 0.50 = 0.10).
STEP 03
Multiply by 100
Convert back to percent (0.10 × 100% = 10%).
STEP 04
Apply to Total
Multiply effective percentage by any baseline amount.