-50.25% is the change from 197 to 98
Calculation steps:
[( 98 - 197 ) ÷ 197] x 100 = -50.25%
Formula
Percentage change = [(98 - 197) / 197] x 100
Subtract the new number by the original number
98 - 197 = -99
-99 ÷ 197 = -0.5025380710659898
-0.5025380710659898 x 100 = -50.25%