-2.38% is the change from 671 to 655
Calculation steps:
[( 655 - 671 ) ÷ 671] x 100 = -2.38%
Formula
Percentage change = [(655 - 671) / 671] x 100
Subtract the new number by the original number
655 - 671 = -16
-16 ÷ 671 = -0.02384500745156483
-0.02384500745156483 x 100 = -2.38%