-54.37% is the change from 583 to 266
Calculation steps:
[( 266 - 583 ) ÷ 583] x 100 = -54.37%
Formula
Percentage change = [(266 - 583) / 583] x 100
Subtract the new number by the original number
266 - 583 = -317
-317 ÷ 583 = -0.5437392795883362
-0.5437392795883362 x 100 = -54.37%