-30.79% is the change from 906 to 627
Calculation steps:
[( 627 - 906 ) ÷ 906] x 100 = -30.79%
Formula
Percentage change = [(627 - 906) / 906] x 100
Subtract the new number by the original number
627 - 906 = -279
-279 ÷ 906 = -0.3079470198675497
-0.3079470198675497 x 100 = -30.79%