Hickory Hills Pro Shop had a balance in the Accounts Receivable account of $800,000 at the beginning of the year and a balance of $900,000 at the end of the year. Net credit sales during the year amounted to $8,040,000. The average collection period of the receivables in terms of days was 36.1 days. 37.2 days. 38.4 days. 4 days.