-81.99% is the change from 683 to 123
Calculation steps:
[( 123 - 683 ) ÷ 683] x 100 = -81.99%
Formula
Percentage change = [(123 - 683) / 683] x 100
Subtract the new number by the original number
123 - 683 = -560
-560 ÷ 683 = -0.8199121522693997
-0.8199121522693997 x 100 = -81.99%