Vaughn, Inc. includes the following account among its trade receivables.

Hopkins Co.
1/1		Balance forward		840	1/28		Cash (#1710)		1,150
1/20		Invoice #1710		1,150	4/2		Cash (#2116)		1,470
3/14		Invoice #2116		1,470	4/10		Cash (1/1 Balance)		234
4/12		Invoice #2412		2,110	4/30		Cash (#2412)		920
9/5		Invoice #3614		530	9/20		Cash (#3614 and part of #2412)		863
10/17		Invoice #4912		910	10/31		Cash (#4912)		910
11/18		Invoice #5681		2,060	12/1		Cash (#5681)		1,236
12/20		Invoice #6347		900	12/29		Cash (#6347)		900