65.45% is the change from 521 to 862
Calculation steps:
[( 862 - 521 ) ÷ 521] x 100 = 65.45%
Formula
Percentage change = [(862 - 521) / 521] x 100
Subtract the new number by the original number
862 - 521 = 341
341 ÷ 521 = 0.654510556621881
0.654510556621881 x 100 = 65.45%