You are shopping for a TV, and three stores carry the same model for $300 each. Each store charges 18% interest per annum, has a 30 day grace period, and sends out their bills on the first of the month. Each store calculates the finance charge using different methods: Store A Average daily balance method Store B Adjusted balance method Store C Previous balance method Assume you bought the TV on May 5, and made one payment of $100 on June 15. What is the cost of financing with Store A for the month of June?