I don't understand how to find out
New price of something
I struggle so much with it I've been looking at examples but it doesn't get to my head 🙈
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How can I understand percentages? watch
- Thread Starter
- 15-10-2017 19:04
- 15-10-2017 20:00
I think a lot of percentages comes down to how well u know ur percentages decimals and fractions.
Consider the following:
An item is reduced by 15% in a sale. Its sale price is £35.
So this question is basically telling us that 85% of the original price is £42.50 Since the original price is 100% and 15% was taken off.
So there are a few very similar ways of getting the right answer. The most logical way of thinking that will always work is:
If 85% is £42.50
1% is £0.50
100% is £50.
Essentially what u have done is divide by 85 then multiplied by 100. This can all be done in one eat operation by multiplying 42.50 by 100/85.
This arise due to the fact that dividing by 85 is the same as multiplying by 1/85.
This is a specific example however if u take the methodology u should be able to apply it to almost any case.
If u have any specific questions i can help u with i would be more than happy to.
Note the fractions are not in there simplest forms, im lazy but u shouldnt be.Last edited by Shaanv; 15-10-2017 at 20:02. Reason: TDA Post Edit