34.81% is the change from 721 to 972
Calculation steps:
[( 972 - 721 ) ÷ 721] x 100 = 34.81%
Formula
Percentage change = [(972 - 721) / 721] x 100
Subtract the new number by the original number
972 - 721 = 251
251 ÷ 721 = 0.34812760055478503
0.34812760055478503 x 100 = 34.81%