During January, its first month of operations, Bridgeport Company accumulated the following manufacturing costs: raw materials purchased $5,400 on account, factory labor $7,300, and utilities payable $2,600. In January, requisitions of raw materials for production are as follows: Job 1 $910, Job 2 $1,400, Job 3 $810, and general factory use $610. Record raw materials used. (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).)