Answer
The percent change in her hourly rate is -15%.
It is a percent decrease, which means her salary decreased by 15%.
Work Step by Step
Her previous job paid 12.00 dollars per hour. Her new job pays 10.20 dollars per hour.
To find the percent change, we use the following formula:
percent change = $\frac{New\ amount\ -\ Original\ amount}{Original\ amount}$ $\times$ 100%
The original salary was 12.00 dollars per hour. The new salary is 10.20 dollars per hour. Substituting these values into the formula yields
percent change = $\frac{10.20\ -\ 12.00}{12.00}$ $\times$ 100%
percent change = $\frac{-1.80}{12.00}$ $\times$ 100%
percent change = -0.15 $\times$ 100%
percent change = -15%
Because the percent of change is a negative number, it is a percent decrease.
