34.74% is the change from 521 to 702
Calculation steps:
[( 702 - 521 ) ÷ 521] x 100 = 34.74%
Formula
Percentage change = [(702 - 521) / 521] x 100
Subtract the new number by the original number
702 - 521 = 181
181 ÷ 521 = 0.3474088291746641
0.3474088291746641 x 100 = 34.74%