35.12% is the change from 521 to 704
Calculation steps:
[( 704 - 521 ) ÷ 521] x 100 = 35.12%
Formula
Percentage change = [(704 - 521) / 521] x 100
Subtract the new number by the original number
704 - 521 = 183
183 ÷ 521 = 0.3512476007677543
0.3512476007677543 x 100 = 35.12%