Complete the table to answer the question. Use the unpaid balance method to calculate the interest. Assume a 21% annual interest rate. What is the unpaid balance at the end of August, rounded to the nearest cent? Unpaid balance at Unpaid Payments balance at the end of the Finance Month Purchases PurchasesP beginning charge of the the month month S490.27 $33.60 $32.00 $85.00 June July $175.52 $250.00 $247.69 $200.00 August $143.71 A $611.99 B. $994.59 C.$413.36 $1,011.99