-97.62% is the change from 672 to 16
Calculation steps:
[( 16 - 672 ) ÷ 672] x 100 = -97.62%
Formula
Percentage change = [(16 - 672) / 672] x 100
Subtract the new number by the original number
16 - 672 = -656
-656 ÷ 672 = -0.9761904761904762
-0.9761904761904762 x 100 = -97.62%