反向百分比查询 [英] Reverse Percentage Lookup

问题描述

这必须是一个简单的问题，但我无法解决！

This must be a simple question but I can't work it out!

我知道一个数字已减小到原始大小的70％，如何找到原始数字?

I have a number that I know has been reduced to 70% of its original size, how do I find the original number?

例如，我有9.1，即13 x 70％，但是找到13的计算是什么?

For example I have the number 9.1, which is 13 x 70%, but what is the calculation for finding 13?

推荐答案

您想要的

originalNumber = reducedNumber / (percentage / 100);

例如

13 = 9.1 / (70 / 100)

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