To calculate the percent of change from 65 to 39, you can use the following formula:
\[ \text{Percent Change} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100 \]
In this case, the old value is 65 and the new value is 39.
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Find the difference between the new value and the old value: \[ 39 - 65 = -26 \]
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Divide the difference by the old value: \[ \frac{-26}{65} \approx -0.4 \]
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Multiply by 100 to get the percent change: \[ -0.4 \times 100 = -40% \]
So, the percent change from 65 to 39 is -40%. This indicates a decrease of 40%.