Damon Davis was preparing the work sheet for Drano Plumbing Company. He calculated the net income to be $50,000. When he totaled the Balance Sheet columns, the column totals were debit, $400,000; and credit, $300,000. What was the probable cause of this difference? If this was not the cause, what should he do to find the error? The Trial Balance of the Printer Repair Company at December 31, 2012, contains the following account balances listed in alphabetical order to increase your skill in sorting amounts to