-55.61% is the change from 579 to 257
Calculation steps:
[( 257 - 579 ) ÷ 579] x 100 = -55.61%
Formula
Percentage change = [(257 - 579) / 579] x 100
Subtract the new number by the original number
257 - 579 = -322
-322 ÷ 579 = -0.5561312607944733
-0.5561312607944733 x 100 = -55.61%