65% is the change from 520 to 858
Calculation steps:
[( 858 - 520 ) ÷ 520] x 100 = 65%
Formula
Percentage change = [(858 - 520) / 520] x 100
Subtract the new number by the original number
858 - 520 = 338
338 ÷ 520 = 0.65
0.65 x 100 = 65%
Example