You can change an item's price temporarily on the fly, if necessary.
Sales screen > item has been rung up.
To change the price temporarily, click on the price of the item and input the price when the number pad prompts up.
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Price will only be changed for the rung-up item only. If you want to do price change on multiple items rung up, use the bulk function.
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Select the items you want to change, choose the price change, and input the price when the number pad prompts up.
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