how can i get these numbers

Margin Transactions You believe that the stock of Cara Corporation is overpriced and decide to sell 1,000 shares short at $80. You have posted 50% margin as required. If the stock price drops to $70 per share, what will be the percentage margin on your account? The Value of Your Equity Sales of the stock: $8,000 Money deposited: +$4,000 The Value of the stock owed: -1000P Percentage Margin ($8,000+$4,000-1000P)/1000P = ($8,000+$4,000-1000 x $70)/1000 x $70=71% 4-36 can LaogARial Roadwal Leader duplicated cu dolari