-39.65% is the change from 966 to 583
Calculation steps:
[( 583 - 966 ) ÷ 966] x 100 = -39.65%
Formula
Percentage change = [(583 - 966) / 966] x 100
Subtract the new number by the original number
583 - 966 = -383
-383 ÷ 966 = -0.39648033126293997
-0.39648033126293997 x 100 = -39.65%