-26.81% is the change from 869 to 636
Calculation steps:
[( 636 - 869 ) ÷ 869] x 100 = -26.81%
Formula
Percentage change = [(636 - 869) / 869] x 100
Subtract the new number by the original number
636 - 869 = -233
-233 ÷ 869 = -0.2681242807825086
-0.2681242807825086 x 100 = -26.81%