The purchase price of a commodity is 800 yuan, and the selling price is 1200 yuan. Later, due to the backlog of the product, the store is going to sell it at a discount, but to keep the profit margin not less than 5%, the maximum discount can be discounted.
某种商品的进价为800元，出售时标价为1200元．后来由于该商品积压，商店准备打折出售，但要保持利润率不低于5%，则最多可以打多少折．
<result>7</result>