SOLUTION: Maria had 400 pieces of popcorn and then ate 130 pieces. By what percentage did her number of popcorn pieces decrease?

Question 1154453: Maria had 400 pieces of popcorn and then ate 130 pieces. By what percentage did her number of popcorn pieces decrease?

Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!

HAD 400
ATE 130
THEN Decrease was percent.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Maria had 400 pieces of popcorn and then ate 130 pieces. By what percentage did her number of popcorn pieces decrease?
---------
(130/400)*100%
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