-11.7% is the change from 880 to 777
Calculation steps:
[( 777 - 880 ) ÷ 880] x 100 = -11.7%
Formula
Percentage change = [(777 - 880) / 880] x 100
Subtract the new number by the original number
777 - 880 = -103
-103 ÷ 880 = -0.11704545454545455
-0.11704545454545455 x 100 = -11.7%