【正确答案】{{U}}For a start{{/U}}, when setting price, we should take costs into consideration, which consist of variable costs and fixed costs. We should set price according to our costs, rather than compete blindly. Reasonable price also helps to build brand loyalty. Customers will keep using our products when our price is lower than our competitors. {{U}}Besides{{/U}} considering costs, we should also pay the same attention to consumers' demand. Demand and supply are just like regulators, which can influence our price. When demand goes down, the price should be set lower, and vice versa. {{U}}Finally{{/U}}, it's also important to take customers' perception of price into account, because some people think a higher price signals higher quality. So they take price as a measurement for product quality.