-95.85% is the change from 217 to 9
Calculation steps:
[( 9 - 217 ) ÷ 217] x 100 = -95.85%
Formula
Percentage change = [(9 - 217) / 217] x 100
Subtract the new number by the original number
9 - 217 = -208
-208 ÷ 217 = -0.9585253456221198
-0.9585253456221198 x 100 = -95.85%