Posted by Charlie on Monday, September 26, 2011 at 11:47pm.
An operating log indicates that the average flow through a pump for ten hours is 285 gallons per minute. The following week, the same output is measured as 340 gallons per minute. What is the percent change?

applied math  MathMate, Tuesday, September 27, 2011 at 7:59am
Percent change is measured by the difference divided by the original capacity.
difference = new  old = 340285=55 gpm
old capacity = 285 gpm
So
Percentage change = 55/285*100% 
applied math  Anonymous, Thursday, October 6, 2011 at 2:35pm
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