-3.27% is the change from 672 to 650
Calculation steps:
[( 650 - 672 ) ÷ 672] x 100 = -3.27%
Formula
Percentage change = [(650 - 672) / 672] x 100
Subtract the new number by the original number
650 - 672 = -22
-22 ÷ 672 = -0.03273809523809524
-0.03273809523809524 x 100 = -3.27%