412.12% is the change from 99 to 507
Calculation steps:
[( 507 - 99 ) ÷ 99] x 100 = 412.12%
Formula
Percentage change = [(507 - 99) / 99] x 100
Subtract the new number by the original number
507 - 99 = 408
408 ÷ 99 = 4.121212121212121
4.121212121212121 x 100 = 412.12%