please show formulas

You just purchased 100 shares of stock at a cost of $55 per share. To hedge the risk that the stock might decline in value, you purchased 60 six-month European put options. Each option has an exercise price of $45 and costs $5. How can I develop a worksheet that indicates the six-month percentage return on my portfolio for a variety of possible future prices? Note: A European put option allows you to sell at a given time in the future (in this case, six months) a share of stock for the exercise price (in this case, \$45). The option has no value if the stock's price in six months is $45 or higher