-80.28% is the change from 497 to 98
Calculation steps:
[( 98 - 497 ) ÷ 497] x 100 = -80.28%
Formula
Percentage change = [(98 - 497) / 497] x 100
Subtract the new number by the original number
98 - 497 = -399
-399 ÷ 497 = -0.8028169014084507
-0.8028169014084507 x 100 = -80.28%