Everyone loves a bargain so advertise your goods by putting them on sale.
When you put a product in a promotion we will display the old price and the new price on your listing. We will also display how much the customer saves when they checkout.
When you put a product in a promotion we will inform Google Merchant of the changes in the price.
Promotions work best when you drive urgency to your customers with a time limited offer, such as "15% off all silver jewellery, sale must end on Monday" should do the trick.