There is a promotion in a shopping mall. After 8:00 p.m., the whole shop will get an additional 10% discount on the basis of the original discount, and an additional 100 yuan will be deducted when the payment is over 400 yuan. It is known that a certain shoe cabinet has a 20% discount on the whole site. Someone came to the mall after 9 o'clock in the evening to buy a pair of shoes from the shoe cabinet. It cost 332 yuan. What is the original price of this pair of shoes?
某商场促销，晚上八点以后全场在原折扣基础上再打9折，付款时满400元再减100元．已知某鞋柜全场8折，某人晚上九点多来到商场去该鞋柜买了一双鞋，花了332元，这双鞋的原价是多少元？
<gadget id="calculator">332 + 100</gadget>
<output>432</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(4/5) * (9/10)</gadget>
<output>18/25 = around 0.72</output>

<gadget id="calculator">432 / (18/25)</gadget>
<output>600</output>

<result>600</result>