3 (3 points) Windy River Trading Company received an invoice dated March 10 for $6,001.56 with terms 3/10, 2/20, n/60. They made a payment of $1,200 on March 17 and a second payment of $300 on March 25. What amount will still be owed after March 31? Round your final answer to two decimals. (Do not round intermediate steps)