-17.24% is the change from 812 to 672
Calculation steps:
[( 672 - 812 ) ÷ 812] x 100 = -17.24%
Formula
Percentage change = [(672 - 812) / 812] x 100
Subtract the new number by the original number
672 - 812 = -140
-140 ÷ 812 = -0.1724137931034483
-0.1724137931034483 x 100 = -17.24%