-71.94% is the change from 581 to 163
Calculation steps:
[( 163 - 581 ) ÷ 581] x 100 = -71.94%
Formula
Percentage change = [(163 - 581) / 581] x 100
Subtract the new number by the original number
163 - 581 = -418
-418 ÷ 581 = -0.7194492254733219
-0.7194492254733219 x 100 = -71.94%