i need this in excel with formulas

Common shares of Benson Industries Inc. have a beta of 0.88 The market risk premium is 6.6 percent, and T-bills are currently yielding 0.21 percent, The firm paid dividends totalling $0.48 in the past 12 months ($0.12 quarterly), and dividends are expected to grow at a 2.5 percent annual rate indefinitely If the stock trades for $12.15 per share, what is your best estimate of the firm's cost of equity? (Use both methods of estimation and average your results)