Math and percentages

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Sorry but stuck on stupid on this one.

If I have a random number – let’s say 545 and I reduce it by 20%. It’s reduced by 109 making it 436.

But if I want to increase it back to 545 I have to add 25%

Edit: Ahhhh Thank you all for this! Makes perfect sense now!

In: Mathematics

11 Answers

Anonymous 0 Comments

It may sound obvious, but the answer is “545 and 436 are different numbers”. 

20% of 545 is 109, but 20% of 436 is 87. 

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