-32.53% is the change from 578 to 390
Calculation steps:
[( 390 - 578 ) ÷ 578] x 100 = -32.53%
Formula
Percentage change = [(390 - 578) / 578] x 100
Subtract the new number by the original number
390 - 578 = -188
-188 ÷ 578 = -0.32525951557093424
-0.32525951557093424 x 100 = -32.53%