-55.88% is the change from 578 to 255
Calculation steps:
[( 255 - 578 ) ÷ 578] x 100 = -55.88%
Formula
Percentage change = [(255 - 578) / 578] x 100
Subtract the new number by the original number
255 - 578 = -323
-323 ÷ 578 = -0.5588235294117647
-0.5588235294117647 x 100 = -55.88%