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Reverse percentages and multipliers

Reverse percentages and multipliers

Flow diagram showing a 5% increase from £200 to £210 using ×1.05 and reverse ÷1.05, and a 20% decrease from £35 to £28 using ×0.80 and reverse ÷0.80

Reverse percentages ask you to find the amount before a percentage change. First identify the original amount, the final amount, and whether the change was an increase or a decrease.

Reverse Percentages Lesson

  1. GCSE
  2. /Maths
  3. /Reverse Percentages

Step-by-step lessons covering Edexcel GCSE Maths Reverse Percentages for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

Writing a Ratio as a Fraction or Linear FunctionDirect and Inverse ProportionReverse PercentagesStandard FormSpeed and DensityChanging the Subject of a FormulaExpanding and Factorising QuadraticsSolving QuadraticsDrawing Quadratic GraphsSimultaneous EquationsSolving Simultaneous Equations GraphicallyGradient of a LineEquation of a LineSpheres and ConesSector Areas and Arc LengthsSimilar Shapes (Lengths)Exact trig valuesProbability TreesVenn Diagrams