-79% is the change from 581 to 122
Calculation steps:
[( 122 - 581 ) ÷ 581] x 100 = -79%
Formula
Percentage change = [(122 - 581) / 581] x 100
Subtract the new number by the original number
122 - 581 = -459
-459 ÷ 581 = -0.7900172117039587
-0.7900172117039587 x 100 = -79%