The Tomac Swim Club arranged short-term financing of $13,100.00 on July 5 with the Bank of Commerce and secured the loan with a demand note. The club repaid the loan by payments of $5900 on September 25, $3400 on November 11, and the balance on December 30. Interest, calculated on the daily balance and charged to the club's current account on the last day of each month, was at 10% per annum on July 5 The rate was changed to 95% effective September 1 and to 10.5% effective December 1. How much interest was paid on the loan