-94.5% is the change from 200 to 11
Calculation steps:
[( 11 - 200 ) ÷ 200] x 100 = -94.5%
Formula
Percentage change = [(11 - 200) / 200] x 100
Subtract the new number by the original number
11 - 200 = -189
-189 ÷ 200 = -0.945
-0.945 x 100 = -94.5%
Example