Blackthorn Morgana Set is more expensive than listed

In riot's official post and the "learn more" section about the event in the home screen once you log into the game it says that both the Viridian Kayle Chroma Set and the Blackthorn Morgana Chroma Set will be 1760 Rp however in the store Morgana's skin and chroma set is labeled as 2800 RP which is a massive increase compared to the stated price.