Suppose an original amount decreases by 75%. By what percent must the new
amount increase in order to return to the original amounty Justify your answer
amount increase in order to return to the original amounty Justify your answer
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Answer:
400%
Step-by-step explanation:
supposed that the original amount is 100 decreased by 75% will result to 25.
(100-75% = 25)
the amount 25 must increase by 400% in order to arrive at the original amount which is 100.
(25x400% = 100)
another example:
original amount: 20
20-75% = 5
then,
5x400% = 20 (which is the original amount)