Reverse Percentages

In this lesson, we will learn how to calculate reverse percentages. We will learn how to take a given quantity as a percentage of a whole, and use it to calculate the value of the whole.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.An item was bought for £40 then sold for £50. The selling price was a percentage increase of 20%.

1/4

Q2.An item was bought for £40 then sold for £60. Find the percentage change.

2/4

Q3.An item was bought for £80 then sold for £50. Find the percentage change.

3/4

Q4.A clothes shop normally sells their goods at 80% above cost price. In a sale, the shop reduces the prices by 25%. What percentage profit does the shop make on clothes sold in the sale?

4/4

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.An item was bought for £40 then sold for £50. The selling price was a percentage increase of 20%.

1/4

Q2.An item was bought for £40 then sold for £60. Find the percentage change.

2/4

Q3.An item was bought for £80 then sold for £50. Find the percentage change.

3/4

Q4.A clothes shop normally sells their goods at 80% above cost price. In a sale, the shop reduces the prices by 25%. What percentage profit does the shop make on clothes sold in the sale?

4/4

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Reverse percentages

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If 20% of a number is 32, find 100%

1/4

Q2.If 7% of a number is 14, find 100%

2/4

Q3.A shop has a sale with 10% discount on all items. If a coat costs £45 in the sale. What was its original price?

3/4

Q4.Tim is a car salesman. He bought a car for £5000. Currently he is holding a sale with 35% off the price of all cars. Tim wants to sell the car so that he makes a 10% profit on the price he paid. How much should Tim advertise the car for?

4/4

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Reverse percentages

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.If 20% of a number is 32, find 100%

1/4

Q2.If 7% of a number is 14, find 100%

2/4

Q3.A shop has a sale with 10% discount on all items. If a coat costs £45 in the sale. What was its original price?

3/4

Q4.Tim is a car salesman. He bought a car for £5000. Currently he is holding a sale with 35% off the price of all cars. Tim wants to sell the car so that he makes a 10% profit on the price he paid. How much should Tim advertise the car for?

4/4

Lesson summary: Reverse Percentages

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