-88.15% is the change from 717 to 85
Calculation steps:
[( 85 - 717 ) ÷ 717] x 100 = -88.15%
Formula
Percentage change = [(85 - 717) / 717] x 100
Subtract the new number by the original number
85 - 717 = -632
-632 ÷ 717 = -0.8814504881450488
-0.8814504881450488 x 100 = -88.15%