Banks use several methods to determine pricing for deposits and loans:
1. Pricing deposits at cost plus a profit margin to cover costs of providing deposit services and earn a small profit.
2. Using marginal cost rather than average historical cost to set interest rates on deposits due to fluctuating rates.
3. Conditional pricing where fees depend on maintaining a minimum balance or number of transactions.
4. Relationship pricing where customers receive lower fees for using multiple bank services.
5. Loan pricing is based on the bank's base rate plus a risk premium, where the base rate covers interest expenses, administrative costs, and cost of capital.