-84.17% is the change from 777 to 123
Calculation steps:
[( 123 - 777 ) ÷ 777] x 100 = -84.17%
Formula
Percentage change = [(123 - 777) / 777] x 100
Subtract the new number by the original number
123 - 777 = -654
-654 ÷ 777 = -0.8416988416988417
-0.8416988416988417 x 100 = -84.17%