please help with number 24

A firm has a capital structure of 100% equity. An analyst wants to estimate the current cost of capital for the firm. He has collected some financial data shown in the table below: The beta for the firm is 1.24. The firm is considering a capital budgeting project that will create a cash flow next year of $481,329.00. The project cash flows will grow by 4.00% each year for a 11,00 -year period, and the cost of the project is $3,250,026,00 today. What is an estimate for the current cost of capital? Answer format: Percentago Round to: 2 decimal places (Example: 9.24\%, \% sign required. Will accept decimal format rounded to 4 decimal places (ex: 0.0924) )