-12.63% is the change from 665 to 581
Calculation steps:
[( 581 - 665 ) ÷ 665] x 100 = -12.63%
Formula
Percentage change = [(581 - 665) / 665] x 100
Subtract the new number by the original number
581 - 665 = -84
-84 ÷ 665 = -0.12631578947368421
-0.12631578947368421 x 100 = -12.63%