first you would have to estimate the division problem once you do that just move your decimal 2 spaces to the right for example if you have four eighths you would round four to five and eight to ten and then you divide
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A percent is a ratio of a number to 100.
Two choices: -- Multiply (the number) x (the percent using the percent % key). -- Multiply (the number) x (the percent), then divide the answer by 100. Either way, the claculator displays that many percent of that number.
To find 12.5 percent of a number, multiply the number by 0.125.
15
If 15 percent of a number N is 0.3 what is 45 percent of N