ost pf canital r. using market value weights is % (Round to two decimal nlaces). Data Table in order to copy the contents of the data table below (Click on the icon here into a spreadsheet.) Source of capital Long-term debt Preferred stock Common stock equity Market value $850,000 $60,000 $550,000 Individual cost 5.7% 12.1% 15.7% Print Done WACCMarket value weights The market values and after-tax costs of various sources of capital used by Ridge Tool are show a. Calculate the firm's weighted average cost of capital. b. Explain how the firm can use this cost in the investment decision-making process. a. The firm's weighted average cost of capital, tg, using market value weights is 1%. (Round to two decimal places.)