-15.55% is the change from 688 to 581
Calculation steps:
[( 581 - 688 ) ÷ 688] x 100 = -15.55%
Formula
Percentage change = [(581 - 688) / 688] x 100
Subtract the new number by the original number
581 - 688 = -107
-107 ÷ 688 = -0.1555232558139535
-0.1555232558139535 x 100 = -15.55%