Presented here is selected financial information (in millions of dollars) from the 2017 financial statements of Canadian National Railway Company and Canadian Pacific Railway Limited: CN Railway $13,041 CP Railway $6,554 28 32 Sales Allowance for doubtful accounts, beginning of year Allowance for doubtful accounts, end of year Accounts receivable balance (net), beginning of year Accounts receivable balance (net), end of year 16 25 875 591 984 687 CN Railway CP Railway Receivables turnover times times Average collection period 26 days days Comment on the difference in their collection experiences. was more efficient than A in collecting its receivables