These were the sale prices for the Spring sale which ended on March 23. The Summer sale will probably be the same or similar.
The Sims 4 Expansion Packs – 50% off
High School Years EP is 38% off
The Sims 4 Game Packs are 30% off
My Wedding Stories and Werewolves GP, which are 25% off
All The Sims 4 Stuff Packs, which are also 30% off
And finally – Decorator’s Dream, Everyday Essentials and Pet Lovers Bundles – all 20% off
https://simscommunity.info/2023/03/11/the-sims-4-spring-sale-2023/