please help me. I forgot how to insert this in excel

Calculate the net balance of payment: 1. Home Depot in the United States purchases lumber from Canada that it uses in assembling kitchen cabinets: $5M 2.U.S. government pays a U.S. consulting firm for consulting services provided by the firm: $10M 3.A university bookstore in Ireland purchases textbooks produced by a U.S. publishing company: $0.5M 4.A Mexican company that borrowed dollars from a bank based in the United States makes an interest payment to that bank: $7M 5.A U.S, company sold its trademark to a Chinese firm: $15M 6Japanese government bought U.S. treasuries worth $10M The net balance of payment is $ __. M