Lock IncHas Collected the Following Data Concerning One of Its Products

Multiple Choice

Lock Inc.has collected the following data concerning one of its products: $\begin{array}{ll}\text { Unit sales price } & \$ 145 \\\text { Total sales } & 15,000 \text { units } \\\text { Unit cost } & \$ 115 \\\text { Total investment } & \$ 1,800,000\end{array}$
-The ROI percentage is

A) 20%.
B) 25%.
C) 30%.
D) 35%.