-96.3% is the change from 216 to 8
Calculation steps:
[( 8 - 216 ) ÷ 216] x 100 = -96.3%
Formula
Percentage change = [(8 - 216) / 216] x 100
Subtract the new number by the original number
8 - 216 = -208
-208 ÷ 216 = -0.9629629629629629
-0.9629629629629629 x 100 = -96.3%