The stock price last year was Rs $60$ and this year the stock price is $63.$ The price of $63$ corresponds to a P$/$E ratio of $7\mathrm{.}5$:$1$ and a dividend cover of $2\mathrm{.}1.$ An analyst employs a constant growth model to value the stock What are the values of the growth rate and discount rate estimated by him? If the cost of debt is $10\%$ per annum and the tax rate is $25\%,$ what is the WACC assuming a debt$-$equity ratio of $3$:$2?$