Changes

This sets which of the available price rows offers the rate applies to. If you are showing only one rate offer leave the default value "Price 1" for all rates.

Change ONLY if you are using EXTRA PRICES multiple offers (SETTINGS -> BOOKING PAGE -> ROOMS -> EXTRA PRICES OFFERS ) to offer multiple prices (e.g. standard rate/non refundable rate, packages). Select which price row offer this rate should apply to.