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I always think of it in terms of money. If you have a dollar, 15 cents is 15%.

To find 15% the easiest way to do it is to find 10% and then add another 1/2 to it.

For example:

$42.50 10% is $4.25 (just move the decimal) then you add 1/2 of $4.25 or $2.12 to the original $4.25 to get 15%.

If you are finding 20% simply double the 10%. Super easy for finding tips :-)

HTH

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Harlie

Lvl 5
4y ago

What else can I help you with?