Mastering the math of change for your next exams

GCSE Maths - How to Calculate Percentage Change (Increase or Decrease) (2026/27 exams) · 4:07 · Video: Cognito · Watch at the source

In short: This video breaks down the essential mechanics of calculating percentage increases and decreases. It is a practical guide designed to help students navigate various scenarios where only start and end values are provided.

The tutorial focuses on identifying two critical components: the 'change' value and the 'original' value. By mastering these, learners can apply a consistent formula to determine how much a quantity has shifted relative to its starting point.

While tailored for GCSE Foundation and Higher tiers, the concepts are applicable to math courses globally. The video specifically addresses how to find the difference between two numbers when no direct change is stated, ensuring students can handle complex word problems.

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