-0.34% is the change from 580 to 578
Calculation steps:
[( 578 - 580 ) ÷ 580] x 100 = -0.34%
Formula
Percentage change = [(578 - 580) / 580] x 100
Subtract the new number by the original number
578 - 580 = -2
-2 ÷ 580 = -0.0034482758620689655
-0.0034482758620689655 x 100 = -0.34%