How do I calculate the calories for this ?
When I scan the barcode on a package of hamburger patties from the meat counter, it tells me that one 5 oz. patty is 310 calories. After I grill it, it weighs 2.88 oz. I think I should figure the calories, based on it's weight after grilling. In this case, 57% of 310 calories. Can someone please tell me if I am calculating…
