GCSE Maths – Mastering Reverse Percentages Reverse percentage questions are one of the most common word problems at Grade 5. They ask: “If the price after a 20% increase is £120, what was the original price?” 📌 Key things to remember: • You’re working backwards, so divide instead of multiply • Set up your calculation using the final value and percentage change • These are easy marks if you follow the method step by step 💡 Comes up in Paper 2 and 3 for all exam boards—often in money, population