What is 8% of 30?
8% of 30 is 2.4. Use the calculator below to change either number, or see related calculations.
Calculating 8% of 30: divide 8 by 100, then multiply by 30. The general formula is (X ÷ 100) × Y — works for any percentage and any number.
Percentages around this level appear in everyday calculations (interest rates, growth, splits). This base value sits in the everyday range — receipts, tips, small purchases.
How it works.
Formula: (X ÷ 100) × Y.
Step by step:
- Divide the percentage by 100: 8 ÷ 100 = 0.08.
- Multiply by the number: 0.08 × 30 = 2.4.
Worked examples
8% of 30 = 2.4 — the basic calculation: divide 8 by 100 (= 0.08), then multiply by 30.
8% of 30 as a tip on a small bill — if a service charge of 8% is added to a 30 item, the extra is 2.4.
8% off a 30-pound item — the discount saves 2.4; the sale price is £27.6.
Frequently asked questions
How do I calculate 8% of 30?
Divide 8 by 100, then multiply by 30. 8 ÷ 100 = 0.08; 0.08 × 30 = 2.4. The same formula works for any pair of numbers.
What is 8 percent of 30?
2.4. The full calculation: (8 ÷ 100) × 30 = 0.08 × 30 = 2.4.
What's the difference between a percentage and a percentage point?
A percentage measures a proportion of a whole. A percentage point measures the absolute difference between two percentages. If a tax rate moves from 5% to 7%, that's a 2 percentage point absolute change but a 40% relative increase. UK news often confuses the two when reporting Bank of England rate moves.