-2.74% is the change from 802 to 780
Calculation steps:
[( 780 - 802 ) ÷ 802] x 100 = -2.74%
Formula
Percentage change = [(780 - 802) / 802] x 100
Subtract the new number by the original number
780 - 802 = -22
-22 ÷ 802 = -0.02743142144638404
-0.02743142144638404 x 100 = -2.74%