Exercise 23-9 Riverbed Corp. uses the direct method to prepare its statement of cash flows. Riverbed trial balances at December 31, 2017 and 2016, are as follows. December 31 2017 2016 Cash $35,000 $32,400 33,200 Accounts receivable 29,800 47,200 Inventory 31,000 100,400 95,400 Property, plant, & equipment Unamortized bond discount 4,600 5,100 Cost of goods sold 248,100 376,800 Selling expenses 141,100 173,700 General and administrative expenses 136,600 152,000 Interest expense 4,300 2,700 61,000 Income tax expense 20,500 $754,800 $976,100 Allowance for doubtful accounts $1,300 $1,100 Accumulated depreciation-plant assets 16,600 15,100 25,200 Accounts payable 15,600 Income taxes payable 20,900 29,100 Deferred tax liability 5,200 4,500 8% callable bonds payable 44,800 20,000 Common stock 49,500 40,000 Paid-in capital in excess of par 7,500 9,100 Retained earnings 44,600 65,200 Sales revenu 537,600 778,000 $754,800 $976,100