What is 50% of 30?
50% of 30 = 15
30 × 50/100 = 15
How to calculate 50% of 30
Multiply 30 by 50 and divide by 100: 30 × 50 ÷ 100 = 15. Equivalent shortcut: 30 × 0.5 = 15.
As a discount
A 50% discount on a 30 purchase saves you 15, so you pay 15. Stacking more discounts? Use the Discount & Tax Calculator — stacked discounts multiply, they don't add.
Related percentages
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