A contractor bought 7.6 ft to the second power of sheet metal. he has used 3.7ft to the scound power so far and has $117 worth
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We can calculate the percent change dividing the change by the original amount of people attending the exhibit.
The increase is 298-152 = 146.
Then, we can calculate the percent change as:
There was a 96% increase in the number of people attending the exhibit.