451% is the change from 100 to 551
Calculation steps:
[( 551 - 100 ) ÷ 100] x 100 = 451%
Formula
Percentage change = [(551 - 100) / 100] x 100
Subtract the new number by the original number
551 - 100 = 451
451 ÷ 100 = 4.51
4.51 x 100 = 451%
Example