-2.38% is the change from 672 to 656
Calculation steps:
[( 656 - 672 ) ÷ 672] x 100 = -2.38%
Formula
Percentage change = [(656 - 672) / 672] x 100
Subtract the new number by the original number
656 - 672 = -16
-16 ÷ 672 = -0.023809523809523808
-0.023809523809523808 x 100 = -2.38%