The core logic of tiered quotation is: first understand the risks and service responsibilities each channel role bears, then work backward from the end-retail price to calculate the profit margin each tier should have, and finally confirm whether factory costs can support this structure. Generally, retailers require the largest gross margin (as they directly face consumers and bear inventory and service risks), distributors come next, and importers come third. When designing, consider each level's MOQ, payment terms, and service scope—not just a single wholesale price. Write clear quotation conditions for each tier into contracts and quotations to prevent channels from undercutting each other, ensuring the entire system operates stably over the long term.