Your Vend Stock On Hand tile gives you the option to view by the highest number of items sold (View High Qty) or the lowest number of items sold (View Low Qty).
Go into Vend and follow the steps to find the corresponding information.
1. Under Reporting select Sales Reports
2. Set the Report Type to Product and the Measure drop down to Items Sold
3. Select the date range to the last 1 month or last 30 days from the current date and then apply the changes.
4. You will now see the Items Sold (View High/Low Qty) based on your date search and the figures should match what is being shown in your Tile