Pre tax profit calculation - vanquish interview please help!



Can you please help me calculate the pre tax profit for credit card for 2014 using the following Assumptions.

Request you to list the steps used.

Late fee £12 per occurrence
Over limit fee £10 per occurrence
Cash fees 3% of cash withdrawal value
Annual Fee £25 per account, per year
Interchange 1% of transaction value

Accounts overdue 10% per month
Accounts over limit 15% per month
Average APR 30%
Balances revolving 90% of balance
Average balance £900 at end of 2013
Expected growth in average balance (2014) 10% per annum

Open accounts 200,000 at 2013 year-end
New accounts booked 5,000 per month
Annual operating cost £50 per open account
Cost of Acquisition £50 per account
Provision rate 9% of total balances
Annual cost of funds 4% by balance

Charge off
Unit charge-off rate in 2014 11% of accounts at 2013 year-end
Unit charge-off rate in 2014 0% of accounts booked in 2014
Post charge-off recoveries 20% of balance

Account Transactions
Monthly turnover 5% of total month end balances
Cash advances 20% of monthly turnover

Additional Assumptions
Please state any additional assumptions you have made to calculate your answer

Thanks in advance,