-45.81% is the change from 906 to 491
Calculation steps:
[( 491 - 906 ) ÷ 906] x 100 = -45.81%
Formula
Percentage change = [(491 - 906) / 906] x 100
Subtract the new number by the original number
491 - 906 = -415
-415 ÷ 906 = -0.45805739514348787
-0.45805739514348787 x 100 = -45.81%