-13.35% is the change from 899 to 779
Calculation steps:
[( 779 - 899 ) ÷ 899] x 100 = -13.35%
Formula
Percentage change = [(779 - 899) / 899] x 100
Subtract the new number by the original number
779 - 899 = -120
-120 ÷ 899 = -0.13348164627363737
-0.13348164627363737 x 100 = -13.35%