I need to get the definitions for revenue, profit, net income and
cost-per-asset-ration at banks. This is the difficult part as these
are not common terms used in the banking industry.

Net Income = Trading Profits + Interest Income + Commissions & Fees
Earnings (including Real Estate Owned Loans) - Provision for Loan
Losses - Commissions & Fees Pd/Mgmt Expenses

Cost-per-Asset-Ratio.  Do you mean Asset Reinvestment Ratio?  or Ratio
of Capital to Fixed Assets?

Revenue = The sum of all income.  Such as interest income, other
operating income, trading account profits (Losses), investment income
(Losses)and interest expense.

Profit = Income minus expenses.