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The fastest way to take 20 percent off a number is to multiply the original number by 0.8

20% of 30 is 6.

30 - 6 = 24

30 x 0.8 = 24

Q: How do you subtract 20 percent to a number?

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Since the number will lose 20% of its value, 80% of it will remain. 80% = 0.8 Multiply the number by 0.8 . The result is what remains after the number shrinks by 20%.

14.36just subtract the percent (20) from 100put that number into decimal form (.80)multiply that decimal and your original number (17.95)17.95 X .8 = 14.36works every time :P

10% of 20 = 2, 20-2 = 18

You have to turn the percentage into a decimal.

Multiply the original number by 0.9

Related questions

Since the number will lose 20% of its value, 80% of it will remain. 80% = 0.8 Multiply the number by 0.8 . The result is what remains after the number shrinks by 20%.

Multiply the number by 0.75

14.36just subtract the percent (20) from 100put that number into decimal form (.80)multiply that decimal and your original number (17.95)17.95 X .8 = 14.36works every time :P

932.18

If you subtract 20% from $119, the remainder is $95.2

.20% Times 65000 is 13,000 then u subtract that to get 52k

Multiply 385 by .20 and then subtract the answer from 385, and there you have it! Atleast i think you do.

10% of 20 = 2, 20-2 = 18

Divide the number by 5 and subtract the answer from the original number...

The term 'percent off' means to calculate the percentage, then subtract from the original amount. 20% = 0.20, so 0.20 x 300 = 60. Subtract 60 from 300 = 240

You have to turn the percentage into a decimal.

Multiply the original number by 0.9