Question

the cost of a meal rose from $12 to $15. what is the percent increase?

Explanation:

Step1: Find the amount of increase

$15 - 12=3$

Step2: Use the percent - increase formula

Percent increase = $\frac{\text{amount of increase}}{\text{original amount}}\times100\%$. Here, the original amount is $12$ and the amount of increase is $3$. So, $\frac{3}{12}\times 100\%$.

Step3: Simplify the expression

$\frac{3}{12}\times100\% = 0.25\times100\%=25\%$

Answer:

$25$