It just want to see how you record the writeoff in 2018

Part A 3.0/3.0 points (graded) Attila, Inc. reported the following amounts in its 2018 and 2017 annual reports. ($ Millions) Dec 31, 2018 Dec 31, 2017 From the income statement: Net sales $4076 $3,135 $371.8 $368.4 From the balance sheet Accounts receivable (gross) From the footnote on allowance for doubtful accounts: Balance at beginning of period Additions (reductions) charged to income Writeoffs or deductions Balance at end of period $20.5 $25.6 $16.1 ? ($17.4) ($21.2) $23.0 $20.5 Use the BSE to record accounts receivable written off as uncollectible for the fiscal year ended Dec 31, 2018. Cash + Noncash Assets Contra Assets Liabilities Shareholders Equity -17.4 17.4 X X X X X