-99.72% is the change from 723 to 2
Calculation steps:
[( 2 - 723 ) ÷ 723] x 100 = -99.72%
Formula
Percentage change = [(2 - 723) / 723] x 100
Subtract the new number by the original number
2 - 723 = -721
-721 ÷ 723 = -0.9972337482710927
-0.9972337482710927 x 100 = -99.72%