Canfor Corporation reported the following selected information (in millions) for the three years ended December 31, 2018, 2017 and 2016: Trade receivables (gross) Allowance for doubtful accounts Sales 2018 $186.5 4.4 5,044,4 2017 $196,5 3.5 4,563.3 2016 $168.6 4.4 4,234.9 (a) Calculate Canfor's receivables turnover and average collection period for 2018 and 2017. (Round answers to 1 decimal place, ey. 52.5.) 2018 2017 Receivables turnover times times Average collection period days days