419.39% is the change from 98 to 509
Calculation steps:
[( 509 - 98 ) ÷ 98] x 100 = 419.39%
Formula
Percentage change = [(509 - 98) / 98] x 100
Subtract the new number by the original number
509 - 98 = 411
411 ÷ 98 = 4.1938775510204085
4.1938775510204085 x 100 = 419.39%