The bigger cans of tomato product used to be 32 ounces, and are now down to 29 or 28 ounces.
Tuna fish used to be a full 8 ounces, and then went down to 7 ounces typically, but is now often 5-6 ounces.
A box of pasta used to always be 16 ounces, but now it’s often 13 to 14 ounces. And even 12 ounces.
There are similar examples all over the grocery store. It's obvious that food companies are hoping that less aware consumers won’t notice that they’re getting less for the price they're paying.
But a savvy consumer is far less likely to be taken in by these attempts by manufacturers to hide their price increases.