388.89% is the change from 99 to 484
Calculation steps:
[( 484 - 99 ) ÷ 99] x 100 = 388.89%
Formula
Percentage change = [(484 - 99) / 99] x 100
Subtract the new number by the original number
484 - 99 = 385
385 ÷ 99 = 3.888888888888889
3.888888888888889 x 100 = 388.89%