509.17% is the change from 109 to 664
Calculation steps:
[( 664 - 109 ) ÷ 109] x 100 = 509.17%
Formula
Percentage change = [(664 - 109) / 109] x 100
Subtract the new number by the original number
664 - 109 = 555
555 ÷ 109 = 5.091743119266055
5.091743119266055 x 100 = 509.17%