Price changesis your re-labeling worklist: when a product's retail price changes, it shows up here so floor staff can print a fresh shelf label and tick it off.
Print labelon any row sends one label straight to your store's label printer and ticks the item off — no detour through the Price labels editor. To do several at once, tick the checkboxes (or Select all needing labels) and hit Print N selected. Printing marks the items labeled; Undoon a row puts it back. If your store hasn't set a label printer yet, the buttons open the Price labels page so you can choose one.
A price can change chain-wide on something this store doesn't carry. Those land in a separate Not on your shelfgroup (collapsed) and don't count toward your “needs labels” total — there's nothing on your shelf to relabel. They're still there if you want to print ahead of a delivery: open the group and print as usual.
Retail prices are the same chain-wide, but each store re-labels its own shelves, so the list is per store. Use the store picker at the top (it defaults to your store). Printing an item ticks it off automatically; if the shelf label is already fine and you didn't need to print, hit Mark labeled to clear it without printing. If the price changes again later, the item comes back so you re-label it. Marked something by mistake? Undo brings it back.