Please give me details on how you get the answer. I need to understand the material.

Use the following assumptions to answer the questions below: (1) Operating ratios remain unchanged. (2) Sales will grow by 10%, 8%, 5% for the next four years. (3) The target weighted average cost of capital (WACC) is 9%. This is the No Change scenario because operations remain unchanged. 1. Using the previously forecasted items, calculate for each of the next four years the net operating profit after taxes (NOPAT), net operating working capital, total operating capital, free cash flow, (FCF), annual growth rate of the FCF, and return on investment capital. What does the forecasted free cash flow in the first year imply about the need for external financing? Compare the forecasted ROIC with the WACC. What does this imply about how well the company is performing? \f