-13.24% is the change from 899 to 780
Calculation steps:
[( 780 - 899 ) ÷ 899] x 100 = -13.24%
Formula
Percentage change = [(780 - 899) / 899] x 100
Subtract the new number by the original number
780 - 899 = -119
-119 ÷ 899 = -0.13236929922135707
-0.13236929922135707 x 100 = -13.24%