96.07% is the change from 509 to 998
Calculation steps:
[( 998 - 509 ) ÷ 509] x 100 = 96.07%
Formula
Percentage change = [(998 - 509) / 509] x 100
Subtract the new number by the original number
998 - 509 = 489
489 ÷ 509 = 0.9607072691552063
0.9607072691552063 x 100 = 96.07%