-80.1% is the change from 613 to 122
Calculation steps:
[( 122 - 613 ) ÷ 613] x 100 = -80.1%
Formula
Percentage change = [(122 - 613) / 613] x 100
Subtract the new number by the original number
122 - 613 = -491
-491 ÷ 613 = -0.800978792822186
-0.800978792822186 x 100 = -80.1%