HI, the - (minus) or + (add) means to add quantity to your purchase. Do you want one, two, three etc. or after three, decide you only want two then you apply the - (minus).
example of stock below
The Stock column with -- indicates unlimited inventory.
The column with 1 indicates having only 1 item in inventory.
To add stock click on the -- for a popup to Update Stock.
Turn on the radio button next to Track Stock.
A dropdown of selections for how you wish to track your stock.
