-55.92% is the change from 583 to 257
Calculation steps:
[( 257 - 583 ) ÷ 583] x 100 = -55.92%
Formula
Percentage change = [(257 - 583) / 583] x 100
Subtract the new number by the original number
257 - 583 = -326
-326 ÷ 583 = -0.5591766723842195
-0.5591766723842195 x 100 = -55.92%