-55.1% is the change from 942 to 423
Calculation steps:
[( 423 - 942 ) ÷ 942] x 100 = -55.1%
Formula
Percentage change = [(423 - 942) / 942] x 100
Subtract the new number by the original number
423 - 942 = -519
-519 ÷ 942 = -0.5509554140127388
-0.5509554140127388 x 100 = -55.1%