Need help with this question, thank you in advance! Please show workings and formulas as well

Maple Leaf Foods Inc. reported the following selected information (in thousands) for the three years ended December 31, 2018, 2017, and 2016: 2018 Trade receivables (gross) Allowance for doubtful accounts Sales $109,945 1,305 3,495,519 2017 $90,862 5 3,522,226 2016 $90,463 5 3,331,812 (a) Your answer is incorrect. Calculate Maple Leaf's receivables turnover and average collection period for 2018 and 2017. (Round answers to 1 decimal place, e.g. 52.5.) 2018 2017 Receivables turnover | times times Average collection period days days