BP GmbH used a perpetual inventory system and had the following transactions during a particular month: (a) Purchased merchandise for 25.000 $ on account. Credit terms: 2/10, n/30. (b) Paid freight bill of 470 $ for merchandise purchased in (a). (c) Paid for merchandise purchased in (a) by taking all discounts to which it was entitled. (d) Sold merchandise for 15.000 $ to a customer on account. The cost of merchandise sold was 9.000 $. Credit terms: 2/10, n/30. (e) 1.000 $ of merchandise sold in (d) was returned. The cost of merchandise returned was 600 $. Assuming that there were no other transactions, what would be the ending inventory balance at the end of that particular month?