499.02% is the change from 102 to 611
Calculation steps:
[( 611 - 102 ) ÷ 102] x 100 = 499.02%
Formula
Percentage change = [(611 - 102) / 102] x 100
Subtract the new number by the original number
611 - 102 = 509
509 ÷ 102 = 4.990196078431373
4.990196078431373 x 100 = 499.02%