-88.78% is the change from 98 to 11
Calculation steps:
[( 11 - 98 ) ÷ 98] x 100 = -88.78%
Formula
Percentage change = [(11 - 98) / 98] x 100
Subtract the new number by the original number
11 - 98 = -87
-87 ÷ 98 = -0.8877551020408163
-0.8877551020408163 x 100 = -88.78%