-3.57% is the change from 672 to 648
Calculation steps:
[( 648 - 672 ) ÷ 672] x 100 = -3.57%
Formula
Percentage change = [(648 - 672) / 672] x 100
Subtract the new number by the original number
648 - 672 = -24
-24 ÷ 672 = -0.03571428571428571
-0.03571428571428571 x 100 = -3.57%