-85.86% is the change from 771 to 109
Calculation steps:
[( 109 - 771 ) ÷ 771] x 100 = -85.86%
Formula
Percentage change = [(109 - 771) / 771] x 100
Subtract the new number by the original number
109 - 771 = -662
-662 ÷ 771 = -0.8586251621271076
-0.8586251621271076 x 100 = -85.86%