The solution for the problem is:
a. Ks = D1 / P0 + g
= 1.16 x 1.06 / 22 + 0.06
= 1.2296/22 + 0.06
= 0.056 + 0.06
= 0.116 or 11.6% would be the required rate of return for this stock.
b. Ks = 1.16 x (1.11) / 22 + .11
= 1.2876/22 + .11
= 0.059 + .11
= 0.169 or 16.9% would be the required rate of return if Mccracken expects both earnings and dividends to grow.