I need assitance with the questions marked with a red "X". I input 3494.4 & 3494 for Part A and was still incorrect.

Analysis and Interpretation of Profitability Dalnnma chaste and inrome statements for Costco Wholesale Corporation follow. (a) Compute net operating profit after tax (NOPAT) for 2018. Assume that the combined federal and state statutory tax rate is 22\%. (b) Compute net operating assets (NOA) for 2018 and 2017. (C) Compute Costco's RNOA, net operating profit margin (NOPM) and net operating asset turnover (NOAT) for 2018 . (c) Compute Costco's RNOA, net operating profit margin (NOPM) and net operating asset turnover (NOAT) for 2018. (d) Compute net nonoperating obligations (NNO) for 2018 and 2017 . Confirm the relation: NOA = NNO + Total equity: (d) Compute net nonoperating obligations (NNO) for 2018 and 2017. Confirm the relation: NOA - NNO + Total equity. (e) Compute return on equity (ROE) for 2018 . (f) infer the nonoperating return component of ROE for 2018 . Analysis and Interpretation of Profitability Dalnnma chaste and inrome statements for Costco Wholesale Corporation follow. (a) Compute net operating profit after tax (NOPAT) for 2018. Assume that the combined federal and state statutory tax rate is 22\%. (b) Compute net operating assets (NOA) for 2018 and 2017. (C) Compute Costco's RNOA, net operating profit margin (NOPM) and net operating asset turnover (NOAT) for 2018 . (c) Compute Costco's RNOA, net operating profit margin (NOPM) and net operating asset turnover (NOAT) for 2018. (d) Compute net nonoperating obligations (NNO) for 2018 and 2017 . Confirm the relation: NOA = NNO + Total equity: (d) Compute net nonoperating obligations (NNO) for 2018 and 2017. Confirm the relation: NOA - NNO + Total equity. (e) Compute return on equity (ROE) for 2018 . (f) infer the nonoperating return component of ROE for 2018