Worked example 1
Percentages · Core GCSE skill · No calculator · 2 marks
Work out 15% of £60
- 10% of 60 is 6.
- 5% is half of 10%, so 5% of 60 is 3.
- 15% = 10% + 5% = 6 + 3 = 9 pounds.
Build confidence with percentages of amounts, percentage changes and reverse percentages. Try the examples, check the working, then choose the part of percentages you want to practise next.
Foundation and Higher · Useful for students strengthening core skills before mixed GCSE practice.
Core pathway. Core GCSE methods are useful across Foundation and Higher. Start with the core examples and questions.
Higher extension. More demanding selections are marked Higher extension: practice question 8. Use these after the core work, following your teacher’s guidance.
3 worked examples and 8 original practice questions · Allow 25–40 minutes · Read online or print. Higher extensions are labelled. No account or email needed.
Printing includes the method, examples and space for working, followed by a separate answer section.
An increase followed by the same percentage decrease usually does not return to the starting amount: the second percentage uses a different base.
Read each line of working and explain why it follows from the previous line.
A percentage means parts per hundred. Multiply the amount by the percentage divided by 100.
Percentages · Core GCSE skill · No calculator · 2 marks
Work out 15% of £60
Now practise this method: Question 1 · Question 2
Find the change first, divide by the original amount, then multiply by 100. Name whether this is an increase or decrease.
Percentage Change · Core GCSE skill · No calculator · 3 marks
Last year a rail season ticket cost £640.
This year the same season ticket costs £688.
Work out the percentage increase in the cost of the season ticket.
Now practise this method: Question 3 · Question 4
The final amount already includes the change. Identify its decimal multiplier, then divide the final amount by that multiplier to recover 100%.
Reverse Percentages · Core GCSE skill · Calculator allowed · 2 marks
In a sale, all prices are reduced by 15%.
The sale price of a jumper is £68.
Work out the normal price of the jumper.
Now practise this method: Question 5 · Question 6 · Question 7 · Question 8
Write your working on paper. Marks indicate how much working to show; these questions are self-marked and do not change saved practice results. Use squared paper for drawing questions.
Percentages · Core GCSE skill · Calculator allowed · 2 marks
A bottle contains 850 ml of juice.
34% of the juice is orange juice.
Work out how many millilitres of orange juice are in the bottle.
Percentages · Core GCSE skill · Calculator allowed · 2 marks
Hannah puts £2400 into a savings account.
The account pays 3% simple interest each year.
Work out the total amount of interest Hannah gets after 3 years.
Percentage Change · Core GCSE skill · No calculator · 3 marks
Kane buys a bike for £250.
A year later he sells the bike for £210.
Work out his percentage loss.
Percentage Change · Core GCSE skill · No calculator · 3 marks
A trader buys a table for £68.
She sells the table for £85.
Work out her percentage profit.
Reverse Percentages · Core GCSE skill · No calculator · 2 marks
The price of a rail ticket increased by 20%.
The ticket now costs £54.
Work out the price of the ticket before the increase.
Reverse Percentages · Core GCSE skill · No calculator · 2 marks
The price of a jacket is reduced by 10%.
The reduced price is £63.
Work out the price of the jacket before the reduction.
Reverse Percentages · Core GCSE skill · Calculator allowed · 2 marks
The population of a town increased by 12% between 2015 and 2025.
The population in 2025 was 26 880.
Work out the population in 2015.
Reverse Percentages · Higher extension · Calculator allowed · 2 marks
In a sale there is 30% off all prices.
Kofi pays £59.36 for a coat in the sale.
Work out the price of the coat before the sale.
Compare the reasoning as well as the final answer. Another correct method is valid. If a step is unclear, revisit an example before trying a similar question.
Workouts provide interactive practice; choose the tier your school has recommended.
Ask pupils to identify which amount represents 100% before they start. Keep original amount, change and final amount clearly labelled in their working.
Build a custom classroom worksheet or print this page. The teacher builder can display questions on a projector and reveal answers separately.