505% is the change from 100 to 605
Calculation steps:
[( 605 - 100 ) ÷ 100] x 100 = 505%
Formula
Percentage change = [(605 - 100) / 100] x 100
Subtract the new number by the original number
605 - 100 = 505
505 ÷ 100 = 5.05
5.05 x 100 = 505%
Example