31.57% is the change from 548 to 721
Calculation steps:
[( 721 - 548 ) ÷ 548] x 100 = 31.57%
Formula
Percentage change = [(721 - 548) / 548] x 100
Subtract the new number by the original number
721 - 548 = 173
173 ÷ 548 = 0.3156934306569343
0.3156934306569343 x 100 = 31.57%