i got part $($a$)$ but can you help me with parts $($b$)-($d$)?$ step by step please!!$$ Sora Industries has $68$ million outstanding shares, $\backslash (\backslash$$ $122\backslash )$ million in debt, $\backslash (\backslash$$ $45\backslash )$ million in cash, and the following projected free cash flow for the next four years: a$.$ Suppose Sora's revenue and free cash flow are expected to grow at a $\backslash (3\mathrm{.}9\backslash \%\backslash )$ rate beyond year four. If Sora's weighted average cost of capital is $\backslash (11\mathrm{.}0\backslash \%\backslash ),$ what is the value of Sora stock based on this information? b$.$ Sora's cost of goods sold was assumed to be $\backslash (67\backslash \%\backslash )$ of sales. If its cost of goods sold is actually $\backslash (70\backslash \%\backslash )$ of sales, how would the estimate of the stock's value change? c$.$ Return to the assumptions of part $($a$)$ and suppose Sora can maintain its cost of goods sold at $\backslash (67\backslash \%\backslash )$ of sales. However, the firm reduces its selling, general, and administrative expenses from $\backslash (20\backslash \%\backslash )$ of sales to $\backslash (16\backslash \%\backslash )$ of sales. What stock price would you estimate now? $($Assume no other expenses, except taxes, are affected.$)$ d$.$ Sora's net working capital needs were estimated to be $\backslash (18\backslash \%\backslash )$ of sales $($their current level in year zero$).$ If Sora can reduce this requirement to $\backslash (12\backslash \%\backslash )$ of sales starting in year $1,$ but all other assumptions are as in $($a$),$ what stock price do you estimate for Sora? $($Hint: This change will have the largest impact on Sora's free cash flow in year $1.)$ a$.$ Suppose Sora's revenue and free cash flow are expected to grow at a $\backslash (3\mathrm{.}9\backslash \%\backslash )$ rate beyond year four. If Sora's weighted average cost of capital is $\backslash (11\mathrm{.}0\backslash \%\backslash ),$ what is the value of Sora stock based on this information? The stock price for this case is $\backslash (\backslash$$ $6\mathrm{.}66\backslash ).($Round to the nearest cent.$)$ b$.$ Sora's cost of goods sold was assumed to be $\backslash (67\backslash \%\backslash )$ of sales. If its cost of goods sold is actually $\backslash (70\backslash \%\backslash )$ of sales, how would the estimate of the stock's value change? The stock price for this case, when COGS increases, is $\backslash (\backslash$$ $\backslash ).($Round to the nearest cent.$)($Click on the following icon in order to copy its contents into a spreadsheet.$)$