-23.81% is the change from 672 to 512
Calculation steps:
[( 512 - 672 ) ÷ 672] x 100 = -23.81%
Formula
Percentage change = [(512 - 672) / 672] x 100
Subtract the new number by the original number
512 - 672 = -160
-160 ÷ 672 = -0.23809523809523808
-0.23809523809523808 x 100 = -23.81%