493.94% is the change from 99 to 588
Calculation steps:
[( 588 - 99 ) ÷ 99] x 100 = 493.94%
Formula
Percentage change = [(588 - 99) / 99] x 100
Subtract the new number by the original number
588 - 99 = 489
489 ÷ 99 = 4.9393939393939394
4.9393939393939394 x 100 = 493.94%