59.42% is the change from 520 to 829
Calculation steps:
[( 829 - 520 ) ÷ 520] x 100 = 59.42%
Formula
Percentage change = [(829 - 520) / 520] x 100
Subtract the new number by the original number
829 - 520 = 309
309 ÷ 520 = 0.5942307692307692
0.5942307692307692 x 100 = 59.42%