Oliveras Company had net credit sales during the year of $800,000 and cost of goods sold of $500,000. The balance in accounts receivable at the beginning of the year was $100,000, and the end of the year it was $150,000. What were the accounts receivable turnover and the average collection period in days?

4.0 and 91.3 days.

8.0 and 45.6 days.

6.4 and 57 days.

5.3 and 68.9 days.

19-Sammy Corporation reported net sales of $300,000, $330,000, and $360,000 in the years, 2015, 2016, and 2017, respectively. If 2015 is the base year, what is the trend percentage for 2017?

108%.

130%.

120%.

77%.