0.28% is the change from 721 to 723
Calculation steps:
[( 723 - 721 ) ÷ 721] x 100 = 0.28%
Formula
Percentage change = [(723 - 721) / 721] x 100
Subtract the new number by the original number
723 - 721 = 2
2 ÷ 721 = 0.0027739251040221915
0.0027739251040221915 x 100 = 0.28%