cost of equity?

Suppose Stark Ltd. just issued a dividend of $2.79 per share on its common stock. The company paid dividends of $2.30, $2.53, $2.60, and $2.71 per share in the last four years. a. If the stock currently sells for $50, what is your best estimate of the company's cost of equity capital using the arithmetic average growth rate in dividends? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g. 32.16.) b. Note that using the arithmetic average ignores compounding. What would the cost of equity be if you instead use the dividend's geometric average growth rate? Watch this video if you don't rememeber how to calculate a geometric average/mean (Do not round intermediate calculations and enter your answer as a percent rounded to 2