$4-$ The CEO of Harding Media Inc. as asked you to help estimate its cost of common equity. You have obtained the following data: D$0=$ $$0\mathrm{.}85$; P$0=$ $$22\mathrm{.}00$; and g $=6\mathrm{.}00\%($constant$).$ The CEO thinks, however, that the stock price is temporarily depressed, and that it will soon rise to $$40\mathrm{.}00.$ Based on the DCF approach, by how much would the cost of common from reinvested earnings change if the stock price changes as the CEO expects?