31.4% is the change from 551 to 724
Calculation steps:
[( 724 - 551 ) ÷ 551] x 100 = 31.4%
Formula
Percentage change = [(724 - 551) / 551] x 100
Subtract the new number by the original number
724 - 551 = 173
173 ÷ 551 = 0.3139745916515426
0.3139745916515426 x 100 = 31.4%