-95.5% is the change from 200 to 9
Calculation steps:
[( 9 - 200 ) ÷ 200] x 100 = -95.5%
Formula
Percentage change = [(9 - 200) / 200] x 100
Subtract the new number by the original number
9 - 200 = -191
-191 ÷ 200 = -0.955
-0.955 x 100 = -95.5%
Example