I dont know what im doing wrong honestly. its giving me half credit.

5. [4/9 Points) DETAILS PREVIOUS ANSWERS CRAUDQL3 4.4.013. MY NOTES You have a credit card with an APR of 16%. You begin with a balance of $750. In the first month you make a payment of $500 and you make charges amounting to $350. In the second month you make a payment of $350 and you make new charges of $550. Complete the following table. (Round your answers to the nearest cent.) Previous balance Payments Month 1 $750 $350 Purchases Finance charge New balance $ 500 $ 7.80 $ 607,80 Month 2 $ 607.80 $350 $ 550 $10.50 $818,30