-86.77% is the change from 809 to 107
Calculation steps:
[( 107 - 809 ) ÷ 809] x 100 = -86.77%
Formula
Percentage change = [(107 - 809) / 809] x 100
Subtract the new number by the original number
107 - 809 = -702
-702 ÷ 809 = -0.8677379480840544
-0.8677379480840544 x 100 = -86.77%