Question

what is the percent of decrease from 31.2 to 27.3? write your answer using a percent sign (%).

Explanation:

Step1: Find the amount of decrease

Subtract the new value from the original value: $31.2 - 27.3 = 3.9$

Step2: Calculate the percent decrease

Use the formula $\text{Percent Decrease} = \frac{\text{Decrease}}{\text{Original Value}} \times 100\%$. Substitute the values: $\frac{3.9}{31.2} \times 100\% = 0.125 \times 100\% = 12.5\%$

Answer:

12.5%