-32.7% is the change from 581 to 391
Calculation steps:
[( 391 - 581 ) ÷ 581] x 100 = -32.7%
Formula
Percentage change = [(391 - 581) / 581] x 100
Subtract the new number by the original number
391 - 581 = -190
-190 ÷ 581 = -0.3270223752151463
-0.3270223752151463 x 100 = -32.7%