-0.51% is the change from 784 to 780
Calculation steps:
[( 780 - 784 ) ÷ 784] x 100 = -0.51%
Formula
Percentage change = [(780 - 784) / 784] x 100
Subtract the new number by the original number
780 - 784 = -4
-4 ÷ 784 = -0.00510204081632653
-0.00510204081632653 x 100 = -0.51%