456.57% is the change from 99 to 551
Calculation steps:
[( 551 - 99 ) ÷ 99] x 100 = 456.57%
Formula
Percentage change = [(551 - 99) / 99] x 100
Subtract the new number by the original number
551 - 99 = 452
452 ÷ 99 = 4.565656565656566
4.565656565656566 x 100 = 456.57%