2310% is the change from 30 to 723
Calculation steps:
[( 723 - 30 ) ÷ 30] x 100 = 2310%
Formula
Percentage change = [(723 - 30) / 30] x 100
Subtract the new number by the original number
723 - 30 = 693
693 ÷ 30 = 23.1
23.1 x 100 = 2310%
Example