A regional commercial bank is considering a loan with the following parameters that would be fully funded by deposits:
- Loan amount: CNY 3.8 billion
- Average annual interest rate paid on deposits: 0.6%
- Annual interest rate received on loan: 4.1%
- Expected loss: 3.0% of face value of loan
- Annual operating costs: 0.3% of face value of loan
- Economic capital required to support the loan: 15.0%
- Average pre-tax return on economic capital: 2.0%
- Effective tax rate: 38%
- Other transfer costs: CNY 0
What is the after-tax RAROC for this loan?