-0.89% is the change from 787 to 780
Calculation steps:
[( 780 - 787 ) ÷ 787] x 100 = -0.89%
Formula
Percentage change = [(780 - 787) / 787] x 100
Subtract the new number by the original number
780 - 787 = -7
-7 ÷ 787 = -0.008894536213468869
-0.008894536213468869 x 100 = -0.89%