-91.75% is the change from 97 to 8
Calculation steps:
[( 8 - 97 ) ÷ 97] x 100 = -91.75%
Formula
Percentage change = [(8 - 97) / 97] x 100
Subtract the new number by the original number
8 - 97 = -89
-89 ÷ 97 = -0.9175257731958762
-0.9175257731958762 x 100 = -91.75%