-42.6% is the change from 906 to 520
Calculation steps:
[( 520 - 906 ) ÷ 906] x 100 = -42.6%
Formula
Percentage change = [(520 - 906) / 906] x 100
Subtract the new number by the original number
520 - 906 = -386
-386 ÷ 906 = -0.4260485651214128
-0.4260485651214128 x 100 = -42.6%