-49.41% is the change from 842 to 426
Calculation steps:
[( 426 - 842 ) ÷ 842] x 100 = -49.41%
Formula
Percentage change = [(426 - 842) / 842] x 100
Subtract the new number by the original number
426 - 842 = -416
-416 ÷ 842 = -0.49406175771971494
-0.49406175771971494 x 100 = -49.41%