-45.09% is the change from 581 to 319
Calculation steps:
[( 319 - 581 ) ÷ 581] x 100 = -45.09%
Formula
Percentage change = [(319 - 581) / 581] x 100
Subtract the new number by the original number
319 - 581 = -262
-262 ÷ 581 = -0.4509466437177281
-0.4509466437177281 x 100 = -45.09%