Golden Eagle Mall increased the price of a "Midea" microwave oven by 50% of the purchase price, and wrote "big bargain, 20% discount". As a result, each microwave oven sold for 240 yuan. How much is the purchase price of this microwave oven?
金鹰商城将一款"美的"微波炉按进价的50%加价后，写上"大酬宾，八折优惠"，结果每个微波炉卖240元，这款微波炉每个进价多少元
<result>200</result>