-48.41% is the change from 818 to 422
Calculation steps:
[( 422 - 818 ) ÷ 818] x 100 = -48.41%
Formula
Percentage change = [(422 - 818) / 818] x 100
Subtract the new number by the original number
422 - 818 = -396
-396 ÷ 818 = -0.4841075794621027
-0.4841075794621027 x 100 = -48.41%