448.48% is the change from 99 to 543
Calculation steps:
[( 543 - 99 ) ÷ 99] x 100 = 448.48%
Formula
Percentage change = [(543 - 99) / 99] x 100
Subtract the new number by the original number
543 - 99 = 444
444 ÷ 99 = 4.484848484848484
4.484848484848484 x 100 = 448.48%