Calculate Return

If the $\frac{P}{E}$ is $18$ today and rises to $20$ in a year, and earnings today are $$2\mathrm{.}00$ and rise to $$2\mathrm{.}38,$ what is the return? Assume that dividends over the next year are $$0\mathrm{.}90.$

Remember:

Return price at time $\frac{1}{?}$ price at time $0$