62.57% is the change from 513 to 834
Calculation steps:
[( 834 - 513 ) ÷ 513] x 100 = 62.57%
Formula
Percentage change = [(834 - 513) / 513] x 100
Subtract the new number by the original number
834 - 513 = 321
321 ÷ 513 = 0.6257309941520468
0.6257309941520468 x 100 = 62.57%