575.76% is the change from 99 to 669
Calculation steps:
[( 669 - 99 ) ÷ 99] x 100 = 575.76%
Formula
Percentage change = [(669 - 99) / 99] x 100
Subtract the new number by the original number
669 - 99 = 570
570 ÷ 99 = 5.757575757575758
5.757575757575758 x 100 = 575.76%