Answer:
0.19625 or 19.63%
Explanation:
Cost of retained earnings, r:
[tex]=\frac{D0\times(1+g)}{P0}+g[/tex]
where,
D0 = Dividend paid yesterday
g = Expected growth rate of dividend
P0 = Current price of common stock
[tex]=\frac{3.50\times(1+0.1)}{40}+0.1[/tex]
[tex]=\frac{3.85}{40}+0.1[/tex]
= 0.09625 + 0.1
= 0.19625 or 19.63%