-9.96% is the change from 231 to 208
Calculation steps:
[( 208 - 231 ) ÷ 231] x 100 = -9.96%
Formula
Percentage change = [(208 - 231) / 231] x 100
Subtract the new number by the original number
208 - 231 = -23
-23 ÷ 231 = -0.09956709956709957
-0.09956709956709957 x 100 = -9.96%