-0.28% is the change from 721 to 719
Calculation steps:
[( 719 - 721 ) ÷ 721] x 100 = -0.28%
Formula
Percentage change = [(719 - 721) / 721] x 100
Subtract the new number by the original number
719 - 721 = -2
-2 ÷ 721 = -0.0027739251040221915
-0.0027739251040221915 x 100 = -0.28%