-3.08% is the change from 682 to 661
Calculation steps:
[( 661 - 682 ) ÷ 682] x 100 = -3.08%
Formula
Percentage change = [(661 - 682) / 682] x 100
Subtract the new number by the original number
661 - 682 = -21
-21 ÷ 682 = -0.030791788856304986
-0.030791788856304986 x 100 = -3.08%