-49.52% is the change from 842 to 425
Calculation steps:
[( 425 - 842 ) ÷ 842] x 100 = -49.52%
Formula
Percentage change = [(425 - 842) / 842] x 100
Subtract the new number by the original number
425 - 842 = -417
-417 ÷ 842 = -0.49524940617577196
-0.49524940617577196 x 100 = -49.52%