-80.04% is the change from 491 to 98
Calculation steps:
[( 98 - 491 ) ÷ 491] x 100 = -80.04%
Formula
Percentage change = [(98 - 491) / 491] x 100
Subtract the new number by the original number
98 - 491 = -393
-393 ÷ 491 = -0.8004073319755601
-0.8004073319755601 x 100 = -80.04%