-26.82% is the change from 906 to 663
Calculation steps:
[( 663 - 906 ) ÷ 906] x 100 = -26.82%
Formula
Percentage change = [(663 - 906) / 906] x 100
Subtract the new number by the original number
663 - 906 = -243
-243 ÷ 906 = -0.2682119205298013
-0.2682119205298013 x 100 = -26.82%