Calculating 35lb of seed to # of oz of popped popcorn

Calculating 35lb of seed to # of oz of popped popcorn   (07/26/2017, 3:44 PM)

i am tring to figure out how many ounces of popped popcorn are in a 170 oz bag, a 130 oz bag an 85 oz bag and a 46 oz bag.