80.75% is the change from 400 to 723
Calculation steps:
[( 723 - 400 ) ÷ 400] x 100 = 80.75%
Formula
Percentage change = [(723 - 400) / 400] x 100
Subtract the new number by the original number
723 - 400 = 323
323 ÷ 400 = 0.8075
0.8075 x 100 = 80.75%