-32.65% is the change from 98 to 66
Calculation steps:
[( 66 - 98 ) ÷ 98] x 100 = -32.65%
Formula
Percentage change = [(66 - 98) / 98] x 100
Subtract the new number by the original number
66 - 98 = -32
-32 ÷ 98 = -0.32653061224489793
-0.32653061224489793 x 100 = -32.65%