You Can Now Show Price Drop Rich Result in SERPs. USA only.
https://developers.google.comGoogle has updated their Product Structured Data documentation to show a new enhancement, Price drop. The price drop appearance is available in English in the US, on both desktop and mobile.
Google automatically calculates the price drop, based on the running historical average of your product’s pricing.
To be eligible for the price drop appearance, add an Offer
to your Product
structured data. The price
must be a specific price, not a range (for example, it can’t be $50.99 to $99.99).