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

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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) About Me  (Show Source):
You can put this solution on YOUR website!



HAD 400
ATE 130
THEN Decrease was %28130%2F400%29%2A100 percent.

Answer by Alan3354(69443) About Me  (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?
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(130/400)*100%