<prompt> Human: Back in June of 2017, my parents were kind enough to offer to pay a certain amount of my car, plus a matching of whatever I could come up with. That ended up being 4000, plus matching. The final price of my car with reg fees etc was 7400. So, 5700 from my parents and 1700 myself.I got a loan through my credit union with my dad as the cosigner with a rate of 5.45. My car payment every month is 174. This obviously comes out of my credit union savings account. In theory, my parents were going to reimburse me 500 every few months until the total paid back to me was 5700 in total.I now owe a total of 6400 on the car. Over time, my parents have actually only paid me about 1300 for the car so far. With my monthly payments, less the amount theyve already given me, and my 174 monthly installments... how much do I still owe?I cant figure it out. My weak calculations bring me to 2000 that I owe, even though Ive already paid 1278 out of my savings. Can someone please help me figure this out?Assistant: Can you explain the numbers again... the above doesnt make sense... Human: My car cost me 7400 plus interest, so 7800 total. My parents have given me 1300 toward their 5700 total they owe me. I have paid roughly 1200 out of my savings account over the past 7 months.  <response>: My car cost me 7400 plus interest, so 7800 totalThats not how interest works... at 5.45 you will end up paying around 8,300 for the car if only the minimum payments are made. assuming its a 48 month term loan... 