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RP.4.2

Percentage change

Calculate percentage increase and decrease using multipliers

5 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.

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Grade 3–6 Core 🇬🇧 UK

GCSE Maths - Percentage Increase and Decrease (Multiplier Method) (2026/27 exams)

Cognito 593K views

Teaches both the multiplier method and the simple method for percentage increase and decrease.

Jump to 0:00Introto Percentage Increases and Decreases 0:20Two Methods Overview 0:37Method 1: Simple Calculation (Increase Example)1:33Method 1: Simple Calculation (Decrease Example)2:13Method 1: Contextual Example 3:26Method 2: Multiplier Method Introduction

Grade 3–6 Core 🇬🇧 UK

Increase/Decrease by a Percentage - GCSE Maths

1st Class Maths 59K views

Covers increasing and decreasing by a percentage with both non-calculator and multiplier approaches.

Jump to 0:00Introduction 0:21Percentage Increase (non-calculator)3:57Percentage Decrease (non-calculator)6:38Percentage Increase (calculator)9:04Percentage Decrease (calculator)11:20Multipliers

Grade 3–6 Core 🇬🇧 UK

Percentage Change - Corbettmaths

corbettmaths 347K views

Corbettmaths explains how to work out a percentage change from a starting and ending value.

Grade 4–6 Core 🇬🇧 UK

Increase or Decrease by a Percentage (Using a Multiplier!) | Grade 5 Crossover | GCSE Maths Tutor

The GCSE Maths Tutor 72K views

Focused revision of increasing and decreasing by a percentage using the multiplier method.

Grade 3–6 Core 🇬🇧 UK

Percentage Change

Maths Genie 62K views

Maths Genie works through percentage change questions step by step for GCSE.