-9.51% is the change from 862 to 780
Calculation steps:
[( 780 - 862 ) ÷ 862] x 100 = -9.51%
Formula
Percentage change = [(780 - 862) / 862] x 100
Subtract the new number by the original number
780 - 862 = -82
-82 ÷ 862 = -0.0951276102088167
-0.0951276102088167 x 100 = -9.51%