What is 10% of 30?
10% of 30 = 3
30 × 10/100 = 3
How to calculate 10% of 30
Multiply 30 by 10 and divide by 100: 30 × 10 ÷ 100 = 3. Equivalent shortcut: 30 × 0.1 = 3.
As a discount
A 10% discount on a 30 purchase saves you 3, so you pay 27. Stacking more discounts? Use the Discount & Tax Calculator — stacked discounts multiply, they don't add.
Related percentages
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