-27.81% is the change from 899 to 649
Calculation steps:
[( 649 - 899 ) ÷ 899] x 100 = -27.81%
Formula
Percentage change = [(649 - 899) / 899] x 100
Subtract the new number by the original number
649 - 899 = -250
-250 ÷ 899 = -0.27808676307007785
-0.27808676307007785 x 100 = -27.81%