-45.28% is the change from 583 to 319
Calculation steps:
[( 319 - 583 ) ÷ 583] x 100 = -45.28%
Formula
Percentage change = [(319 - 583) / 583] x 100
Subtract the new number by the original number
319 - 583 = -264
-264 ÷ 583 = -0.4528301886792453
-0.4528301886792453 x 100 = -45.28%