-6.86% is the change from 583 to 543
Calculation steps:
[( 543 - 583 ) ÷ 583] x 100 = -6.86%
Formula
Percentage change = [(543 - 583) / 583] x 100
Subtract the new number by the original number
543 - 583 = -40
-40 ÷ 583 = -0.0686106346483705
-0.0686106346483705 x 100 = -6.86%