Could someone please check my work?

If you pay $20 To buy a European Call option with strike price $200 at time += 2, where interest is continuously compounded, what is The return on the investment if the price of the security or += 2 is 8250 ? Return on Investment = ($ 250 - $200 ) e- - 08 ( 2 ) - $20 = $22. 60718945 ~ $22 . 61 max ( SCt ) - K, O ) e-08( 2) _ ( where SCt ) is the price of the security at t, present value of what you profir K= strike price , and by selling the stock art C = in cost To purchase and paying the strike Call option price