-2.79% is the change from 681 to 662
Calculation steps:
[( 662 - 681 ) ÷ 681] x 100 = -2.79%
Formula
Percentage change = [(662 - 681) / 681] x 100
Subtract the new number by the original number
662 - 681 = -19
-19 ÷ 681 = -0.027900146842878122
-0.027900146842878122 x 100 = -2.79%