Question

A $95 graphing calculator is on sale for $85.50.

The percent decrease is _____.

9.5%
10%
1%
9%

Answer 1

To calculate the percent decrease, you can use the following formula:

\[
\text{Percent Decrease} = \left( \frac{\text{Original Price} - \text{Sale Price}}{\text{Original Price}} \right) \times 100
\]

In this case, the original price of the graphing calculator is $95 and the sale price is $85.50.

1. Find the decrease in price:
\[
\text{Decrease} = 95 - 85.50 = 9.50
\]

2. Use the formula to find the percent decrease:
\[
\text{Percent Decrease} = \left( \frac{9.50}{95} \right) \times 100
\]

3. Calculate:
\[
\frac{9.50}{95} = 0.1
\]
\[
0.1 \times 100 = 10\%
\]

So, the percent decrease is **10%**.