BendyMindiPilates

Wondering if there is a way to change the price of a product in the point of sale screen. I have products for sale in the store that are not on the website. I do not want to add them everytime I sell them. I would like to create a generic item and then change the price when I sell it? I also have a vendor in my store that is not on my website. So the flexibility to do this is super important.