404.04% is the change from 198 to 998
Calculation steps:
[( 998 - 198 ) ÷ 198] x 100 = 404.04%
Formula
Percentage change = [(998 - 198) / 198] x 100
Subtract the new number by the original number
998 - 198 = 800
800 ÷ 198 = 4.040404040404041
4.040404040404041 x 100 = 404.04%