Fully worked, step-by-step solutions to GCSE Percentage change questions. See exactly how to solve problems on percentage multiplier, percentage increase, percentage decrease, money.
Start from the original amount as
Every amount is of itself before anything happens to it.
Add the percentage change
A increase leaves you with of the original amount.
Write that percentage as a decimal
Dividing by turns the percentage into the multiplier . Multiplying by carries out the increase in one go.
Start from the original amount as
Every amount is of itself before anything happens to it.
Subtract the percentage change
A decrease leaves you with of the original amount.
Write that percentage as a decimal
Dividing by turns the percentage into the multiplier . Multiplying by carries out the decrease in one go.
Start from the original amount as
Every amount is of itself before anything happens to it.
Add the percentage change
A increase leaves you with of the original amount.
Write that percentage as a decimal
Dividing by turns the percentage into the multiplier . Multiplying by carries out the increase in one go.
Start from the original amount as
Every amount is of itself before anything happens to it.
Subtract the percentage change
A decrease leaves you with of the original amount.
Write that percentage as a decimal
Dividing by turns the percentage into the multiplier . Multiplying by carries out the decrease in one go.
Start from the original amount as
Every amount is of itself before anything happens to it.
Add the percentage change
A increase leaves you with of the original amount.
Write that percentage as a decimal
Dividing by turns the percentage into the multiplier . Multiplying by carries out the increase in one go.
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