-30.64% is the change from 581 to 403
Calculation steps:
[( 403 - 581 ) ÷ 581] x 100 = -30.64%
Formula
Percentage change = [(403 - 581) / 581] x 100
Subtract the new number by the original number
403 - 581 = -178
-178 ÷ 581 = -0.306368330464716
-0.306368330464716 x 100 = -30.64%