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Wiki User
i would calculate this by taking 10% which is 1.5 (that's easy to work out because you just move the decimal point when place).
then another 5% (to give 15%) is half as much again = 0.75
1.5 + 0.75 = 2.25
15 - 2.25 = 12.75
If you're doing this on a calculator then it's 0.85 x 15
0.85 times the original value 85 percent of the original
20.25 off.
68
£2.70
35.70
233.75
what is 10 percent off 399.00
105.00 off, leaving 595.00
15%
15 ÷ 100 × 125 = 18.75
15 % of 155.00 = 15x155.00 / 100 = 23.25
(15/100) X 749 = 112.35
85 times 15/100 = 12.75 pounds off