-15.92% is the change from 691 to 581
Calculation steps:
[( 581 - 691 ) ÷ 691] x 100 = -15.92%
Formula
Percentage change = [(581 - 691) / 691] x 100
Subtract the new number by the original number
581 - 691 = -110
-110 ÷ 691 = -0.15918958031837915
-0.15918958031837915 x 100 = -15.92%