35.51% is the change from 521 to 706
Calculation steps:
[( 706 - 521 ) ÷ 521] x 100 = 35.51%
Formula
Percentage change = [(706 - 521) / 521] x 100
Subtract the new number by the original number
706 - 521 = 185
185 ÷ 521 = 0.3550863723608445
0.3550863723608445 x 100 = 35.51%