Quick and accurate percentage calculations. Four calculators in one page.
To find X% of Y: multiply Y by X and divide by 100. For example, 20% of 150 = (150 × 20) ÷ 100 = 30. Use the first calculator on this page for instant results.
Percentage increase = ((New Value − Old Value) ÷ Old Value) × 100. For example, from 80 to 100 = ((100−80)÷80)×100 = 25% increase.
15% of $47 = $7.05. Total with tip = $54.05. For 20% tip: $47 × 0.20 = $9.40. Use the "X% of Y" calculator for instant tip calculations.
Divide the first number by the second and multiply by 100. For example, 45 out of 60 = (45÷60)×100 = 75%.
Discounted price = Original price × (1 − Discount%). For 30% off $120: $120 × 0.70 = $84. Use the "Subtract %" calculator for instant discount results.