Question

The original price of a watch was $109.it was on sale for 100.28.what was the discount rate

Answer 1

$\ 109-\ 100.28=\ 8.72\\\\\frac{\ 8.72}{\ 109}=\frac{8.72}{109}\cdot100\%=\frac{872}{109}\%=8\%\leftarrow answer$