The price of a refrigerator is 22% off, which is 330 yuan cheaper than the original price. How much is the original price of this refrigerator?
一种电冰箱的价格打七八折后，比原价便宜330元，这种电冰箱原价多少元？
<gadget id="calculator">78 / 100</gadget>
<output>39/50 = around 0.78</output>

<gadget id="calculator">1 - (39/50)</gadget>
<output>11/50 = around 0.22</output>

<gadget id="calculator">330 / (11/50)</gadget>
<output>1_500</output>

<result>1_500</result>