-51.21% is the change from 865 to 422
Calculation steps:
[( 422 - 865 ) ÷ 865] x 100 = -51.21%
Formula
Percentage change = [(422 - 865) / 865] x 100
Subtract the new number by the original number
422 - 865 = -443
-443 ÷ 865 = -0.5121387283236994
-0.5121387283236994 x 100 = -51.21%