Stan had to delay the sale of common stock. Previously, the current risk$-$free rate was $4\%$ and the expected market return was $12\%.$ When he finally did sell the stock, the fisk$-$free rate had fallen to $3\%,$ but the expected return on the market had risen to $13\%.$ What was the effect on the cost of equity by waiting six months, using a beta of $1\mathrm{.}05$ and $1\mathrm{.}20?$