-8.49% is the change from 777 to 711
Calculation steps:
[( 711 - 777 ) ÷ 777] x 100 = -8.49%
Formula
Percentage change = [(711 - 777) / 777] x 100
Subtract the new number by the original number
711 - 777 = -66
-66 ÷ 777 = -0.08494208494208494
-0.08494208494208494 x 100 = -8.49%