Nutrition info from package of MFP

I'm planning my meals for tomorrow and I found myself in a little bit of a pickle: I feel like the nutrition info on the package is waaay off (I'm planning on using frozen but pre-cooked prawns) with only 12 g of protein and 52 kcal per 100 g. I can't find similiar amounts anywhere in the Internet and in MFP database. Which info should I trust more: the one on the package or the general one for prawns?
The question may seem stupid but it's a difference of about 10g of protein and that is huge for me