100.8% is the change from 497 to 998
Calculation steps:
[( 998 - 497 ) ÷ 497] x 100 = 100.8%
Formula
Percentage change = [(998 - 497) / 497] x 100
Subtract the new number by the original number
998 - 497 = 501
501 ÷ 497 = 1.0080482897384306
1.0080482897384306 x 100 = 100.8%