I think this question was in 2008 June. There is this motor expense of 8250 or something… of which it says that the person drove 25000 miles, of which 5000 were for business trip in Europe. 25% was for Private and 75% was for Business. Please advice on how to adjust for the separation of expense between private and business.
From the information you give I presume you are dealing with the adjustment of profit for an unincorporated trader where there is a need to add back the private use by the proprietor element of any expenses. It would appear that 5000 of the 25.000 were specifically business leaving 20,000 miles of which 5,000 were private – hence 5,000 of the total 25,000 miles are private so add back 5/25 of the motor expenses.