What is 9% of 40?

9% of 40 = 3.6

Formula: 40 × 9 ÷ 100 = 3.6. Or work it out as 9 hundredths: 1% of 40 is 0.4, so 9% is 0.4 × 9 = 3.6.

• 40 − 9% = 36.4 (for example a 9% discount)
• 40 + 9% = 43.6 (for example adding 9% tax or a tip)
• 3.6 is 9% of 40

Any other numbers? Use the percentage calculator, the discount calculator or the percent change calculator.

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