62.19% is the change from 521 to 845
Calculation steps:
[( 845 - 521 ) ÷ 521] x 100 = 62.19%
Formula
Percentage change = [(845 - 521) / 521] x 100
Subtract the new number by the original number
845 - 521 = 324
324 ÷ 521 = 0.6218809980806143
0.6218809980806143 x 100 = 62.19%