-91.4% is the change from 93 to 8
Calculation steps:
[( 8 - 93 ) ÷ 93] x 100 = -91.4%
Formula
Percentage change = [(8 - 93) / 93] x 100
Subtract the new number by the original number
8 - 93 = -85
-85 ÷ 93 = -0.9139784946236559
-0.9139784946236559 x 100 = -91.4%