-55.19% is the change from 906 to 406
Calculation steps:
[( 406 - 906 ) ÷ 906] x 100 = -55.19%
Formula
Percentage change = [(406 - 906) / 906] x 100
Subtract the new number by the original number
406 - 906 = -500
-500 ÷ 906 = -0.5518763796909493
-0.5518763796909493 x 100 = -55.19%