-91.84% is the change from 98 to 8
Calculation steps:
[( 8 - 98 ) ÷ 98] x 100 = -91.84%
Formula
Percentage change = [(8 - 98) / 98] x 100
Subtract the new number by the original number
8 - 98 = -90
-90 ÷ 98 = -0.9183673469387755
-0.9183673469387755 x 100 = -91.84%