This is the 2nd scenario for PSLE Maths – 5 Common Questions for Percentage.
Scenario 2: Finding Percentage Increase/Decrease
Useful tip: Always put the original at the denominator. Percentage Increase = Increase/ Original * 100%
Question: Peter bought a computer for $800. This was 20% less than the usual price.
a)If he sold it at 5% more than the selling price, how much did he sell the computer for?
b) If he sold it at 5% more than the usual price, how much did he sell the computer for?
Below is a video showing the explanation for question 2. This video will give you an idea on how to attempt similar questions.
I have also created a percentage worksheet that gives more questions on this type of question. Do try the questions and make sure you know how to do them.
You can view the worksheet here.