-55.09% is the change from 904 to 406
Calculation steps:
[( 406 - 904 ) ÷ 904] x 100 = -55.09%
Formula
Percentage change = [(406 - 904) / 904] x 100
Subtract the new number by the original number
406 - 904 = -498
-498 ÷ 904 = -0.5508849557522124
-0.5508849557522124 x 100 = -55.09%