-2.67% is the change from 673 to 655
Calculation steps:
[( 655 - 673 ) ÷ 673] x 100 = -2.67%
Formula
Percentage change = [(655 - 673) / 673] x 100
Subtract the new number by the original number
655 - 673 = -18
-18 ÷ 673 = -0.02674591381872214
-0.02674591381872214 x 100 = -2.67%