Trading profit question one June 2014 exam

Hi Sir,

I was practicing my understanding based on the exam resolution, but now I have a doubt just at the beginning of the resolution in the question one, trading profit calculation.

Please can you explain why the tax adjusted trading profit of period two, 12,060 was apportioned by 8/12 if they relate to 12 months.

In my own opinion I thought that it can be:

Period one 3.840
Period two. 12.060
Period two CA. 8/12*(432). 11.772

Total. 15.612

Not 11.592 as stated in the exam answer.

Best regards
ET