x

What percentage change measures

What percentage change measures

Flow diagram showing original amount, change, new amount, and the percentage change formula with the original amount highlighted in the denominator

Percentage change tells you how big a change is compared with what you started with. That is why a £20 change can be tiny in one question but huge in another.

Percentage Change Lesson

  1. IGCSE
  2. /Maths
  3. /Percentage Change

Step-by-step lessons covering CIE IGCSE Maths Percentage Change for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) format. Start with the Core-tier fundamentals in number and algebra before moving on to the more demanding Extended-only topics like calculus-adjacent algebra and advanced trigonometry.

Lessons