389.22% is the change from 102 to 499
Calculation steps:
[( 499 - 102 ) ÷ 102] x 100 = 389.22%
Formula
Percentage change = [(499 - 102) / 102] x 100
Subtract the new number by the original number
499 - 102 = 397
397 ÷ 102 = 3.892156862745098
3.892156862745098 x 100 = 389.22%