You expected the Ali Baba stock price to rise over the next six months. Now, the current price is $90. To utilize your expectation, you bought 5 call option contracts with strike price of $91 on Ali Baba stock. The call option price is $6 per option. If the stock price ends with $125 in six months and exercised the options, what is the total net profit? (caution: don’t forget the contract size of stock option)