Accounts receivable turnover and days' sales in receivables For two recent years, Robinhood Company reported the following: Sales Accounts receivable: Beginning of year End of year 20Y9 2018 $7,647,500 $6,267,500 580,000 570,000 510,000 580,000 a. Determine the accounts receivable turnover for 2019 and 20Y8. Round answers to one decimal place. 2018: 2019: b. Determine the days' sales in receivables for 2019 and 2018. Use 365 days and round all calculations to one decimal place. 2018: 2019: days days c. Are the changes in the accounts receivable turnover and days' sales in receivables from 20Y8 to 2019 favorable or unfavorable?