Laura is currently paying off her four-year car financing. When she purchased her car, it had a list price of $19,858. Laura traded in her previous car, a good-condition 2000 Honda Insight, for 85% of the trade-in value listed below, financing the rest of the cost at 9.5% interest, compounded monthly. She also had to pay 9.27% sales tax, a $988 vehicle registration fee, and a $77 documentation fee. However, because Laura wants to pay off her loan more quickly, she makes a total payment of $550 every month. How much extra is she paying monthly? Round all dollar values to the nearest cent.

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