n/10
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You can decrease a number by 10 percent by multiplying it by 0.9
To decrease a number means to take away, or subtract, something from the number.
say the number you start out with is A, and the number it becomes is B. to find the percentage, you must subtract A-B. Then divide the answer by A and multiply by 100% to get the percentage. (A-B)/A * 100% ex. 10 is the number you start with, 4 is the second number. So A=10 and B=4 10-4=6 6/10=0.6 multiply by 100% to get the percentage 60% so the percent of decrease is 60%
10% decrease.
Multiply the original number by 0.95