SOLUTION: How do I find the percent of sugar when 2.8 mass before chewing gum, 1.4 after, and 1.4 difference? how much percent is sugar? (btw, its easy to see its 50% but i need the formula)

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Question 920958: How do I find the percent of sugar when 2.8 mass before chewing gum, 1.4 after, and 1.4 difference? how much percent is sugar? (btw, its easy to see its 50% but i need the formula)
Answer by josgarithmetic(39799) About Me  (Show Source):
You can put this solution on YOUR website!
How do you account for the water that the finished-chewed gum now has? You do not have enough information until you know this.