Packaging has stayed the same size but the content has decreased 50%
Edit: Thank you all for pointing out these are infact two different types of fruits. I guess I really am fruit blind.
I did not have the older raspberry packaging, so I am comparing to the older strawberry packaging still in my freezer, of the same line/brand. All new packages are now 300g while the older packaging was 600g. Once (or if) I buy these again, I will snap a picture of the new 300g strawberry packaging.
Here is a comparison of older Blueberry packaging of 600g still in my freezer, the ones in store are now 300g.



Those aren’t the same product though