Calculate how much raw materials was used from the following information provided to you by Tortellini Corporation. Administrative expenses Direct labor Finished goods inventory - January 1 balance Finished goods inventory - December 31 balance Manufacturing overhead Raw materials-purchases $900 400 320 360 190. 180 160 170 2,600 Selling expenses 660 Work in process inventory January 1 balance 270 Work in process inventory December 31 balance 280 Raw materials inventory January 1 balance Raw materials inventory-December 31 balance Revenues