At the beginning of the month, Supplies were $500. During the month, the company purchased $400 of supplies. At month's end, November 30, $300 of supplies were still on hand. a. What was the cost of supplies used during the month? Where is this item reported? b. Where is the ending balance of supplies reported? c. Make the adjusting entry to update the Supplies account at the end of the month. $ 600 The cost of supplies is reported among the L on the Save.