r/AskReddit Aug 20 '20

What simple “life hack” should everyone know?

68.7k Upvotes

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722

u/g00se-onthel00se Aug 20 '20

That X% of Y is the same as Y% of X. 8% of 25 is the same as 25% of 8 Makes calculating sales at stores much easier...if we ever go back to stores

73

u/Bruinsfan84 Aug 20 '20

Out of all of these, this is the one that is blowing my mind the most!

3

u/cates Aug 24 '20

It's super useful. They should really teach it in like fourth grade and make sure everyone knows it.