Stock valuation with non-constant growth: M&M Co. just paid a dividend of $5.00 per share. The company will increase its dividend by 15 percent next year and will then reduce its dividend growth rate by 5 percentage points per year until it reaches the industry average of 5 percent dividend growth, after which the company will keep a constant growth rate forever. If the required return on M&M stock is 10 percent, what will a share of stock sell for today? Show your work.