Elisa would like to participate in the limited upside of YZ, Inc. As an option writer, she wrote (or sold) five YZ, Inc. call contracts with an exercise price of $6 expiring in 3 months. The premium is $2 each. If the stock price at expiration is $7, the buyer exercises his/her contracts. What is the net profot or loss of her investment, assuming that there are no transaction costs?