dangerous mistake while grocery shopping!

yesterday I was grocery shopping and saw the price for a small pack of chicken to be around $287. I was thinking 'that can't be right even some expensive purses or clothes don't cost that much' even the monthly utility bill, phone bill, internet bill doesn't cost anywhere near that high! Even the monthly grocery bill isn't that high!' Some lady showed me the correct price underneath which was around $7 so I was thinking 'that's better' most likely it was mislabeled and the store needs to know or they will scare away customers!