-7.72% is the change from 842 to 777
Calculation steps:
[( 777 - 842 ) ÷ 842] x 100 = -7.72%
Formula
Percentage change = [(777 - 842) / 842] x 100
Subtract the new number by the original number
777 - 842 = -65
-65 ÷ 842 = -0.07719714964370546
-0.07719714964370546 x 100 = -7.72%