571.72% is the change from 99 to 665
Calculation steps:
[( 665 - 99 ) ÷ 99] x 100 = 571.72%
Formula
Percentage change = [(665 - 99) / 99] x 100
Subtract the new number by the original number
665 - 99 = 566
566 ÷ 99 = 5.717171717171717
5.717171717171717 x 100 = 571.72%