31.07% is the change from 721 to 945
Calculation steps:
[( 945 - 721 ) ÷ 721] x 100 = 31.07%
Formula
Percentage change = [(945 - 721) / 721] x 100
Subtract the new number by the original number
945 - 721 = 224
224 ÷ 721 = 0.3106796116504854
0.3106796116504854 x 100 = 31.07%