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History Tab shows graphical data of the sales for the selected item.
The graphical data shows the following:
Average Price - what is the average of the price that the selected item has been sold for during specified time period
Average Cost - what is the average cost that the selected item has been purchased for during specified time period
Date - displays the days, weeks, months, and years and average price and cost for selected item.
Date Range can be specified by the drop down on the top right of the screen.
You can select any of the following options:
Days
Weeks
Months
Years