Miaoxiangjia ordered 5 bags of pure milk every day in October, and paid a total of 14.5 yuan at the wholesale price, and the retail price was 3.3 yuan per bag. How much cheaper is each bag of milk than the retail price?
妙想家10月份每天预订5袋纯牛奶，按批发价共付14.5元，零售价是每袋3.3元，这样每袋牛奶比零售价便宜多少元？
<gadget id="calculator">14.5 / 5</gadget>
<output>2.9</output>

<gadget id="calculator">3.3 - 2.9</gadget>
<output>0.4</output>

<result>0.4</result>