Weight Discrepancy: Red Fox Red Leicester @ Sam’s Club

Hi all, as someone from this sub recommended this cheese from Sam’s I picked up 2 “pounds” there after work. I put them both in the fridge and saw one piece was much larger than the other, so I weighed them both. A pound is 453.5 grams - these weighed 434g and 491g, 4.3% under and 8.3% over their listed weight.