-30.13% is the change from 906 to 633
Calculation steps:
[( 633 - 906 ) ÷ 906] x 100 = -30.13%
Formula
Percentage change = [(633 - 906) / 906] x 100
Subtract the new number by the original number
633 - 906 = -273
-273 ÷ 906 = -0.30132450331125826
-0.30132450331125826 x 100 = -30.13%