-85.32% is the change from 681 to 100
Calculation steps:
[( 100 - 681 ) ÷ 681] x 100 = -85.32%
Formula
Percentage change = [(100 - 681) / 681] x 100
Subtract the new number by the original number
100 - 681 = -581
-581 ÷ 681 = -0.8531571218795888
-0.8531571218795888 x 100 = -85.32%