To calculate the percent change from 100 to 63, you can use the formula for percent change:
\[ \text{Percent Change} = \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \times 100 \]
In this case, the old value is 100 and the new value is 63.
- Calculate the change: \(63 - 100 = -37\)
- Use the formula:
\[ \text{Percent Change} = \frac{-37}{100} \times 100 = -37% \]
Since the value decreased from 100 to 63, this is a decrease of 37%.