Practise finding percentages, percentage change and reverse-percentage problems with instant feedback.
A salary decreased from £76,000 to £72,200. What is the percentage decrease? (Enter a number, e.g. 10 for 10%)
Percentage calculations are at the heart of everyday UK finance — from VAT and discounts to interest rates and pay rises. This drill covers three types of question: finding a percentage of an amount (e.g. what is 20% of £450?), calculating percentage change (e.g. a salary rose from £32,000 to £35,200 — what is the increase?), and working backwards from a final price to find the original (e.g. a price after 20% VAT is £60 — what was it before?). Each question is randomly generated so you can practise indefinitely. Answers are checked to the nearest penny.
Divide the percentage by 100, then multiply by the amount. For example, 20% of £450 = 0.20 × 450 = £90.
Subtract the old value from the new value, divide by the old value, multiply by 100. Example: (35200 − 32000) / 32000 × 100 = 10%.
Divide the final price by (1 + rate). For a 20% increase the divisor is 1.20. So £60 ÷ 1.20 = £50.
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