-54.63% is the change from 939 to 426
Calculation steps:
[( 426 - 939 ) ÷ 939] x 100 = -54.63%
Formula
Percentage change = [(426 - 939) / 939] x 100
Subtract the new number by the original number
426 - 939 = -513
-513 ÷ 939 = -0.5463258785942492
-0.5463258785942492 x 100 = -54.63%