Percentage Increase, Decrease and Change Mastery
An interactive lesson on screen. Your child works through worked examples, practises on their own, then tests themselves with questions that get harder as they go.
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About this lesson
By the end of this lesson your child can take any percentage change question, adding an increase, taking a discount off, or working out the percentage a price rose by, and know instantly which number counts as the whole. Percentage change is where 11+ and GCSE Foundation marks are lost quietly, because the arithmetic is easy and the decision about what to divide by is not.
Topics covered:
- Increasing an amount by a percentage, both by adding the change on and by finding the new percentage in one step
- Decreasing an amount, including sale wording like 20% off, and choosing whichever route is fewer steps
- Writing one amount as a percentage of another, including when the units differ, for example 40p out of £2.50
- Multi-step problems, successive changes, best buys, and taking a percentage of what is left
- Percentage change, comparing the change with the original amount and never with the new one
Your child works through this lesson on any screen. They click to reveal each line of a worked example, try the practice questions on paper, then click to check their own answer. Every worked example and every question set redeals on a button press, so the lesson does not run out after one sitting, and three hands-on tools let them step through a change one part at a time.
How it's structured:
- Each of the 5 units opens with two worked examples your child clicks through line by line, then practice questions colour-coded easy, medium and hard
- 90 questions in total, each with a click-to-reveal answer and a reveal-all option per section
- A final 20-question mixed challenge pulling from all 5 units, the way these questions actually arrive on an exam paper
Two routes, taught side by side. Increasing £70 by 20% and finding 120% of £70 land on the same answer, and a child who knows both can pick whichever is shorter. It matters most on a decrease, where taking 75% off is one calculation and the long way round is three. This lesson teaches both routes on the same numbers and gives a rule for choosing between them. It also drills the error that costs the most marks, dividing a change by the new amount instead of by the amount you started with.
Use this if:
- Your child is in Year 4 to Year 11 and percentage questions are still slow or hit and miss
- You are preparing for the 11+, where increase, decrease and percentage change appear every year
- Your child is doing GCSE Foundation and keeps dividing by the wrong number on percentage change
- You want a resource your child can check their own work with, not one more thing on your to-do list
Built by an experienced maths teacher with over 3,000 hours of one-to-one tutoring experience and a Master's in Education.
Better value as a bundle. This lesson is one of 3 in the Percentages Bundle, all 3 for £11.99 instead of £17.97 bought separately.
Format: Interactive digital lesson, link sent by email straight after purchase.
Suitable for: Year 4 to Year 11, 11+, KS2, KS3, KS4, GCSE Foundation.
Want to try it first? Work through 12 free percentage questions with the same click-to-reveal answers. No sign up, and it prints as a worksheet if you want one.
Who this is for
Built for students who want to practise independently, at their own pace, with clear examples and instant feedback rather than a static worksheet.
What's included
Worked examples
See the method explained step by step before trying it yourself.
Guided practice
Work through questions with answers hidden until you're ready to check.
Exam-style questions
Split easy to hard, so your child is always working at the right level.
How it works
Buy the lesson
Complete checkout securely through Shopify.
Get your link by email
Your lesson link lands in your inbox straight after payment.
Work through it on screen
Open the link on any device and start straight away.
What parents say
My son has been having 11+ Maths tuition with Aadam and the improvement in his confidence and ability has been noticeable. Aadam breaks down challenging topics in a way that’s easy to understand and ensures concepts are fully grasped before moving on. The sessions are focused and well planned.F. Khushi · January 2026
Aadam, the tutor has a lovely mannerism and has made my daughter feel at ease. He explains the question in a way that she understands and is patient with her. She has already seen the results at school from his help and has gone up two GCSE grades in a short period of time.P. Flower · December 2024
Aadam is the best maths tutor I’ve ever had! His online maths lessons are easy to follow, and he always breaks down difficult topics into manageable parts. Thanks to Aadam’s tutoring, I’ve gone up two grades in maths and feel ready for my GCSE exams!L. Anggriani · December 2024
Verified 5-star Google reviews of SHLC's tutoring and lessons. Read all 62 reviews
FAQs
How do I access the lesson?
You'll get an email with your lesson link as soon as payment goes through. Click it to open the lesson in any browser, no login and no app to install.
How does the marking work?
There's no typing answers into a box. Your child works it out on paper, then clicks to reveal the correct answer and checks their own work. Full working is shown too, not just the final answer, so mistakes are easy to spot.
Does it work on a phone or tablet?
It works best on a tablet or laptop, where there's more room to read the examples and questions. It'll open on a phone too, but the text and diagrams can feel quite small on a smaller screen.
Can I use the lesson more than once?
Yes. There's no limit on how many times you open the link, so it's there for revision right up to the exam.
What if I lose the link or don't get the email?
Email info@shlc-tutor.co.uk and we'll resend it straight away.
Ready to start?
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