-95.34% is the change from 580 to 27
Calculation steps:
[( 27 - 580 ) ÷ 580] x 100 = -95.34%
Formula
Percentage change = [(27 - 580) / 580] x 100
Subtract the new number by the original number
27 - 580 = -553
-553 ÷ 580 = -0.9534482758620689
-0.9534482758620689 x 100 = -95.34%