Chapter 12.3, Problem 40CCR

To determine

To find: Percentage of increment

Answer to Problem 40CCR

  $10\%$

Explanation of Solution

Given information:

We know that

  $\text{Initial cost=30\$,final cost=33\$}$

Formula used:

  $\text{\%increment=}\frac{\text{final-initial}}{\text{initial}}\text{×100}$

Calculation: $\text{\%increment=}\frac{\text{33-30}}{\text{30}}\text{×100}$

  $\begin{array}{l}\text{=}\frac{\text{3}}{\text{30}}\text{×100}\\ \text{=10\%}\end{array}$