-96.03% is the change from 580 to 23
Calculation steps:
[( 23 - 580 ) ÷ 580] x 100 = -96.03%
Formula
Percentage change = [(23 - 580) / 580] x 100
Subtract the new number by the original number
23 - 580 = -557
-557 ÷ 580 = -0.9603448275862069
-0.9603448275862069 x 100 = -96.03%
Example