415.15% is the change from 99 to 510
Calculation steps:
[( 510 - 99 ) ÷ 99] x 100 = 415.15%
Formula
Percentage change = [(510 - 99) / 99] x 100
Subtract the new number by the original number
510 - 99 = 411
411 ÷ 99 = 4.151515151515151
4.151515151515151 x 100 = 415.15%