Really? PC gaming has about 35 million users, the PS4 has sold nearly 80 million console's, Xbox One is somewhere above 30 million since the last time they actual numbers, Nintendo Switch has sold close to 15 million. Consider that user base and the fact that when a game is released, it's usually priced at $60, although it will drop in price down the road. Average game may sell between 5 million to 11 million, GTA 5 being an abnormal one selling over 70 million and all the money it keeps making online. Also, consider the "optional" DLC content and season pass, which developers also make money from.
If it's based off numbers alone, have all the Candy Crush players help out in revenue.
Then we can talk about actual gaming performance and gameplay, which is what actually matters, if you want to.