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What is the percent of change from $100$ to $91$ ? $\newline$ Choices: $\newline$ (A) $9\%$ decrease $\newline$ (B) $9\%$ increase $\newline$ (C) $14\%$ increase $\newline$ (D) $14\%$ decrease

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Percent of change

Full solution

Q. What is the percent of change from

100

to

91

?

\newline

Choices:

\newline

(A)

9\%

decrease

\newline

(B)

9\%

increase

\newline

(C)

14\%

increase

\newline

(D)

14\%

decrease

Calculate Difference: Step $1$ : Calculate the difference between the final and initial values. $\newline$ Initial value: $100$ $\newline$ Final value: $91$ $\newline$ Difference = Final value - Initial value = $91 - 100 = -9$
Calculate Percent Change: Step $2$ : Calculate the percent of change. $\newline$ Percent of change = $(\text{Difference} / \text{Initial value}) \times 100\%$ $\newline$ Percent of change = $(-9 / 100) \times 100\% = -9\%$
Determine Increase or Decrease: Step $3$ : Determine if it's an increase or decrease. Since the result is negative, it's a decrease.

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