Can I get a step by step work out for this question please from question b onwards

Sora Industries has 67 million outstanding shares, $130 million in debt, $60 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 5.7% rate beyond year four. If Sora's weighted average cost of capital is 9.0%, what is the value of Sora stock based on this information? The stock price for this case is $11.59. (Round to the nearest cent.) b. Sora's cost of goods sold was assumed to be 67% of sales. If its cost of goods sold is actually 70% of sales, a. Suppose Sora's revenue and free cash flow are expected to grow at a 5.7% rate beyond year four. If Sora's weighted average cost of capital is 9.0%, what is the value of Sora stock based on this information? b. Sora's cost of goods sold was assumed to be 67% of sales. If its cost of goods sold is actually 70% 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 67% of sales. However, the firm reduces its selling, general, and administrative expenses from 20% of sales to 16% 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 18% of sales (their current level in year zero). If Sora man radume thic ranuiramant in 17% nf caloc otartinn in vaar 1 hut all nthar accumntinne ara ac in la) what etarb a. Suppose Sora's revenue and free cash flow are expected to grow at a 5.7% rate beyond year four. If Sora's weighted average cost of capital is 9.0%, what is the value of Sora stock based on this information? The stock price for this case is $11.59. (Round to the nearest cent.) b. Sora's cost of goods sold was assumed to be 67% of sales. If its cost of goods sold is actually 70% of sales, hnwe winuld tho actimato nf the etnrl'e valie shanna