E8.14 100 4) AN The following information (in millions) was taken from the December hinanci statements of Canadian National Railway Company: 2017 2016 2015 Accounts receivable, gross $ 1.000 $ 903 $ 885 Allowance for doubtful accounts 28 Accounts receivable, net 984 875 878 Revenues 13.041 12,037 12,611 Total current assets 2.190 2.107 2.153 Total current liabilities 3,983 3,008 2.998 16 Instructions a. Calculate the 2017 and 2016 current ratios. b. Calculate the receivables turnover and average collection period for 2017 and 2016. e. Comment on any improvement or weakening in CN's liquidity and its management of acco receivable