-48.72% is the change from 823 to 422
Calculation steps:
[( 422 - 823 ) ÷ 823] x 100 = -48.72%
Formula
Percentage change = [(422 - 823) / 823] x 100
Subtract the new number by the original number
422 - 823 = -401
-401 ÷ 823 = -0.48724179829890646
-0.48724179829890646 x 100 = -48.72%