58.16% is the change from 521 to 824
Calculation steps:
[( 824 - 521 ) ÷ 521] x 100 = 58.16%
Formula
Percentage change = [(824 - 521) / 521] x 100
Subtract the new number by the original number
824 - 521 = 303
303 ÷ 521 = 0.581573896353167
0.581573896353167 x 100 = 58.16%