please help :(

only had the interest correct. the rest were wrong

Monica bought a $1500 stereo system for 20% down and payments of $240 per month (except for a smaller final payment) including interest at 14% compounded monthly. Cons the debt. Calculate the total interest paid. (Do not round intermediate calculations. Round your answers to 2 decimal places. Leave no cells blank - be certain to enter "0" wherever required.) Payment number Payment Interest portion Principal portion Principal balance $1200.00 1106.26 $ 101.67 $ 93.74 Total interest