
Andrew M. answered 03/24/17
Tutor
New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors
Find average per technician, then find Amy's average.
Subtract to find the difference.
Average: 444 = (x/100)(8000)
x = 444(100)/8000 = 5.55%
Amy: 575 = (x/100)(8000)
x = 575(100)/8000 = 7.1875%
(Amy %)-(Average) = 7.1875 - 5.55 = 1.6375% more