-95.81% is the change from 215 to 9
Calculation steps:
[( 9 - 215 ) ÷ 215] x 100 = -95.81%
Formula
Percentage change = [(9 - 215) / 215] x 100
Subtract the new number by the original number
9 - 215 = -206
-206 ÷ 215 = -0.958139534883721
-0.958139534883721 x 100 = -95.81%