How do you find the percent change given before:90 and after:200?

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Answer 1 · 2016-11-30T21:58:22

The percent change is $122 . ¯ 2 %$ $122.bar2%$ or 122.2% rounded to the nearest 10th.

Percent change of two values can be determined using the formula:

$p = \frac{N - O}{O} \cdot 100$ $p = (N - O)/O * 100$ where $p$ $p$ is the percent change, $N$ $N$ is the New Value and $O$ $O$ is the Old Value.

We are given the New Value (after = 200) and the Old Value (before = 900) which we can substitute into the formula and calculate the percent change:

$p = \frac{200 - 90}{90} \cdot 100$ $p = (200 - 90)/90*100$

$p = \frac{110}{90} \cdot 100$ $p = 110/90*100$

$p = \frac{11000}{90}$ $p =11000/90$

$p = 122 . ¯ 2 %$ $p = 122.bar2%$