Step-by-Step Calculation
Formula: 15% of 400 = (15 ÷ 100) × 400
Step 1: Convert the percentage to a decimal: 15 ÷ 100 = 0.1500
Step 2: Multiply: 0.1500 × 400 = 60
Related Percentages of 400
15% of Other Numbers
How to Calculate Percentages
To find X% of Y, multiply Y by X/100. For example, 15% of 400 means "15 hundredths of 400" — or 0.1500 × 400 = 60. This works for any percentage and any number. Percentages are used for discounts (25% off), tips (20% of the bill), taxes (8.5% sales tax), and statistics (55% approval rating).
Reverse calculation: 60 is what percent of 400? Answer: 15%. Formula: (60 ÷ 400) × 100 = 15%.
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