According to a Reddit commenter, it's common practice for stores to reduce meat prices on Sunday nights, meaning customers could score lower prices at that time or early Monday.
However, the Redditor said that the chain's marked-down practices could be more sporadic because meat prices are also reduced according to the sell-by date.
A product might be marked down about two days prior to the date listed on the package, and if the item doesn't sell, the store may set the food aside to be donated.