Why net profit will be higher if increases average prices to customers?

Higher prices with same sales quantity will mean greater profit.

Explanation:

Let's hold some variables constant. If a business sells books, and they take the prices up, if they sell the same quantity (at higher prices) this would increase revenues. Higher revenues, less the same cost structure (variable and fixed costs) will lead to a greater profit generation. Of course in the real world, price elasticity of demand comes in play when prices are changed. If prices go up, typically sales quantity will decrease and there may be a net effect in revenue and hence profit. In the simple case where prices go up and sales quantity is unaffected, net profit will rise.

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