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What is the percent of change from $10$ to $7$ ? $\newline$ Choices: $\newline$ (A) $3\%$ increase $\newline$ (B) $30\%$ decrease $\newline$ (C) $3\%$ decrease $\newline$ (D) $30\%$ increase

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Percent of change

Full solution

Q. What is the percent of change from

10

to

7

?

\newline

Choices:

\newline

(A)

3\%

increase

\newline

(B)

30\%

decrease

\newline

(C)

3\%

decrease

\newline

(D)

30\%

increase

Calculate Difference: Calculate the difference between the initial and final values. $\newline$ $10 - 7 = 3$ $\newline$ Amount of change is $3$ .
Calculate Percent Change: Calculate the percent of change using the formula: $(\text{Amount of change} / \text{Original amount}) \times 100\%$ . $\newline$ Percent of change = $(3 / 10) \times 100\%$ $\newline$ = $0.3 \times 100\%$ $\newline$ = $30\%$
Determine Increase or Decrease: Determine if the change is an increase or a decrease. $\newline$ Since the number goes down from $10$ to $7$ , it is a decrease.

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