-96.31% is the change from 217 to 8
Calculation steps:
[( 8 - 217 ) ÷ 217] x 100 = -96.31%
Formula
Percentage change = [(8 - 217) / 217] x 100
Subtract the new number by the original number
8 - 217 = -209
-209 ÷ 217 = -0.9631336405529954
-0.9631336405529954 x 100 = -96.31%