-88.5% is the change from 200 to 23
Calculation steps:
[( 23 - 200 ) ÷ 200] x 100 = -88.5%
Formula
Percentage change = [(23 - 200) / 200] x 100
Subtract the new number by the original number
23 - 200 = -177
-177 ÷ 200 = -0.885
-0.885 x 100 = -88.5%
Example