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? Exercise 4-5 Find cause of Balance Sheet columns not in balance (L.0. 2)