3.3.6

Calculate Percentage Change from Price

Test yourself

Percentage Change

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Format

  • If you are calculating the percentage increase then change = new - old.
  • If you are calculating a percentage decrease then change = old - new.
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Example

  • If someone buys ingredients for £20 and sells pancakes using those ingredients for £35 then their profit is £35 - £20 = £15.
  • They make 75% profit as shown in the image.

Jump to other topics

1Number

1.1Using Numbers

1.2Fractions, Decimals & Percentages

1.3Powers & Roots

1.4Accuracy

2Algebra

2.1Introduction to Algebra

2.2Manipulating Algebra

2.3Proofs & Functions

2.4Straight Line Graphs

2.5Common Graphs

2.6Transformations & Tangents

2.7Properties of Graphs

2.8Solving Equations

2.9Inequalities

2.10Sequences

3Ratio

4Geometry

4.1Introduction to Geometry

4.2Triangles & Quadrilaterals

4.3Transformations

4.4Circle Basics

4.5Circle Theorems

4.6Measurements & Units

4.7Calculating Area

4.8Triangle Formulae

4.93D Shapes

4.10Vectors

5Probability

6Statistics

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