-79.14% is the change from 580 to 121
Calculation steps:
[( 121 - 580 ) ÷ 580] x 100 = -79.14%
Formula
Percentage change = [(121 - 580) / 580] x 100
Subtract the new number by the original number
121 - 580 = -459
-459 ÷ 580 = -0.7913793103448276
-0.7913793103448276 x 100 = -79.14%