Please explain with full working out how the values were obtained

Now take the current price of the Exxon (XOM) May ATM monthly expiry option. Calculate using Black Scholes. a. The dollar value of shares you would need to sell if you sold $20,000 worth of puts. b. The dollar value of your portfolio in one week if the stock went up 5%. C. The % return to your portfolio. Now take the current price of the Exxon (XOM) May ATM monthly expiry option. Calculate using Black Scholes. a. The dollar value of shares you would need to sell if you sold $20,000 worth of puts. b. The dollar value of your portfolio in one week if the stock went up 5%. C. The % return to your portfolio