-79.84% is the change from 610 to 123
Calculation steps:
[( 123 - 610 ) ÷ 610] x 100 = -79.84%
Formula
Percentage change = [(123 - 610) / 610] x 100
Subtract the new number by the original number
123 - 610 = -487
-487 ÷ 610 = -0.7983606557377049
-0.7983606557377049 x 100 = -79.84%