1. Let's define the terms first. The aftersale rate is the percentage of products sold that result in aftersales service requests. 2. The refund rate is the percentage of products sold that are returned for a refund. 3. To calculate these rates, we need the total number of products sold, the number of aftersales service requests, and the number of refunds. 4. The formulas are: - Aftersale rate = $\frac{\text{Number of aftersales requests}}{\text{Total products sold}} \times 100$% - Refund rate = $\frac{\text{Number of refunds}}{\text{Total products sold}} \times 100$% 5. Without specific numbers, we cannot compute exact values. Please provide the total products sold, aftersales requests, and refunds to calculate the rates.