Able Inc. sells a new product with a 2-year warranty. The company estimates that during the two years, the costs and related probabilities are: Year 1: $10,000 (20%) and $20,000 (80%); Year 2: $15,000 (50%); $25,000 (50%).The company's effective interest rate is 4%. Assuming the warranty costs are settled at the end of Years 1 and 2, calculate the estimated warranty liability using the expected cash flow method.