Exercise 5-1A Adjustment for Supplies On December 31, the trial balance indicates that the supplies account has a balance, prior to the adjusting entry, of $320. A physical count of the supplies inventory shows that S90 of supplies I Analyze this adjustment for supplies using T accounts, and then formally enter this adjustment in the general journal. (Trial balance is abbreviated as TB.) (Balance Sheet) Supplies Bal. (Income Statement) Supplies Expense