-2.38% is the change from 673 to 657
Calculation steps:
[( 657 - 673 ) ÷ 673] x 100 = -2.38%
Formula
Percentage change = [(657 - 673) / 673] x 100
Subtract the new number by the original number
657 - 673 = -16
-16 ÷ 673 = -0.0237741456166419
-0.0237741456166419 x 100 = -2.38%