381.82% is the change from 99 to 477
Calculation steps:
[( 477 - 99 ) ÷ 99] x 100 = 381.82%
Formula
Percentage change = [(477 - 99) / 99] x 100
Subtract the new number by the original number
477 - 99 = 378
378 ÷ 99 = 3.8181818181818183
3.8181818181818183 x 100 = 381.82%