Olal. IU marks Sales COGS Interest Dividends Depreciation Cash Receivables Current liabilities Inventory Long-term debt Net fixed assets Tax rate 2017 $2.900 2.030 410 56 290 252 245 908 1,017 3,200 6,000 34% 2018 $3,300 2.310 420 79 330 152 414 1,105 902 3.100 5,700 34% What is the change in net working capital during 2018? Show calculations in detail