-42.94% is the change from 906 to 517
Calculation steps:
[( 517 - 906 ) ÷ 906] x 100 = -42.94%
Formula
Percentage change = [(517 - 906) / 906] x 100
Subtract the new number by the original number
517 - 906 = -389
-389 ÷ 906 = -0.42935982339955847
-0.42935982339955847 x 100 = -42.94%