1. **Stating the problem:** A sofa is advertised with a price reduction of RM800 less 30% and then an additional 10% discount. We need to find the net price and the total discount. 2. **Understanding the problem:** The original price is RM800. First, a 30% discount is applied, then a further 10% discount is applied on the reduced price. 3. **Formula and rules:** - Discount amount = Original price \times Discount rate - Net price after discount = Original price - Discount amount - When multiple discounts are applied sequentially, apply each discount on the price after the previous discount. 4. **Calculations:** - First discount: 30% of RM800 = $800 \times 0.30 = 240$ - Price after first discount = $800 - 240 = 560$ - Second discount: 10% of RM560 = $560 \times 0.10 = 56$ - Price after second discount (net price) = $560 - 56 = 504$ 5. **Total discount:** - Total discount = Original price - Net price = $800 - 504 = 296$ 6. **Final answer:** - Net price = RM504 - Total discount = RM296