What is the difference in the one$-$year after$-$tax returns on the following two stocks, assuming a $37\%$ tax rate on dividends and a $20\%$ tax rate on capital gains? Stock A is purchased for $$50,$ pays a $$2\mathrm{.}5$ dividend at the end of the year, and is then sold for $$56$; stock B is purchased for $$60,$ pays no dividend, but is sold after one year for $$70.$