Annual Turnover or Annual Turns is standardized in BigBusiness 15 to use 365 days.
Questions in the Q&A Tool and Reports for Items calculate this for easy comparison.
These include Q&A's like Which Items Have Turnovers Greater Than... and Reports such as Inventory Sales Analysis, Customer Sales Analysis, and Inventory Turnover.
Turns are calculated by dividing Qty Sold by Ending Qty On Hand for a Date Range. Annual Turns extends Turns by the ratio of days in a year, 365, to days in the range.