Is my maths out or is this misleading (or just plain wrong)?

[Sparklfairy]

I bought an 8 pack of pork loin steaks from Sainsburys. I keep a vague eye on calories but don't religiously log every single thing.

My last pack I bought from Asda, and I'm shocked at the difference in calories (supposedly) and think one of them must be wrong?

Both 8 packs, both 800g, so 100g per steak.

Asda - 302 calories, 22g fat per steak.

Sainsburys - 338 calories, 21g fat PER TWO STEAKS (which they suggest is a serving).

How can Sainsburys pork be half as calorific as Asda? It can't be right, can it? What have I missed? I'm sure it's something really obvious that I just haven't realised, but it does knock your confidence about calorie counting a bit!

Links so you can see...

www.sainsburys.co.uk/gol-ui/product/sainsburys-british-8-thin-cut-loin-steaks-800g-p

groceries.asda.com/product/pork-chops-steaks/asda-butchers-selection-8-pork-loin-steaks/910002871253

There is a YouTube, it shows they tested uncooked meat and write a report.
Then test cooked meat and write a report.
These are not a set made up numbers.
This are the true figures, so even if you don't like it they are really figures required by law.