-2.33% is the change from 688 to 672
Calculation steps:
[( 672 - 688 ) ÷ 688] x 100 = -2.33%
Formula
Percentage change = [(672 - 688) / 688] x 100
Subtract the new number by the original number
672 - 688 = -16
-16 ÷ 688 = -0.023255813953488372
-0.023255813953488372 x 100 = -2.33%