question 9 (1 point) charlie invested $2,200 last year. his investment is now valued at $2,750. which of the…

question 9 (1 point) charlie invested $2,200 last year. his investment is now valued at $2,750. which of the following correctly shows how to calculate return on investment (roi)?\no a $\frac{2750 - 2200}{2750}cdot100$\no b $\frac{2750 - 2200}{2200}cdot100$\no c $\frac{2200 - 2750}{2200}cdot100$\no d $\frac{2200 - 2750}{2750}cdot100$
Answer
Explanation:
Step1: Recall ROI formula
ROI = $\frac{\text{Current Value}-\text{Cost of Investment}}{\text{Cost of Investment}}\times100$
Step2: Identify values
The cost of investment is $2200$ and the current value is $2750$.
Step3: Substitute values
Substituting into the formula gives $\frac{2750 - 2200}{2200}\times100$.
Answer:
B. $\frac{2750 - 2200}{2200}\times100$