-80.61% is the change from 98 to 19
Calculation steps:
[( 19 - 98 ) ÷ 98] x 100 = -80.61%
Formula
Percentage change = [(19 - 98) / 98] x 100
Subtract the new number by the original number
19 - 98 = -79
-79 ÷ 98 = -0.8061224489795918
-0.8061224489795918 x 100 = -80.61%