The third file is for a client named Alexei. Alexei took out a personal loan exactly one year ago with Harrison Bank. From his file, you have noted the following information: Original loan amount: $57,000 Current loan outstanding: $52090.77 Monthly repayment: $820 Next repayment: Due exactly 1 month from now Interest rate on loan:12=9% For the purposes of the remaining questions, use the rounded values given above. Using this information, determine the following:

How much principal has Alexei repaid over the last year? Give your answer to the nearest cent