Parker Young recently received his monthly MasterCard bill for the period June 1-30, 2017, and wants to verify the monthly finance charge calculation, which is assessed at a rate of 12 percent per year and based on ADBs, including new purchases. His outstanding balance, purchases, and payments are as follows: Previous balance $30 Purchases: June 4 une 12 June 20 June 26 Payments $266 June 21 $30 54 116 65