38.77% is the change from 521 to 723
Calculation steps:
[( 723 - 521 ) ÷ 521] x 100 = 38.77%
Formula
Percentage change = [(723 - 521) / 521] x 100
Subtract the new number by the original number
723 - 521 = 202
202 ÷ 521 = 0.3877159309021113
0.3877159309021113 x 100 = 38.77%