Question: Shameka Brown has a Best Buy Stores revolving credit account that has an annual percentage rate of 15% on the unpaid balance. Her unpaid balance for the October billing cycle is $2,531.77. During the billing cycle, Shameka purchased movies for $58.63 and received $70 in cash. She purchased a camera for $562.78 and returned a printer purchased in September for credit of $85.46. Shameka made a payment of $455. Find the finance charge and new balance if Best Buy uses the unpaid balance method.