[经] per cent of year's sales uncollected
nián dù yīng shōu huò kuǎn bǎi fēn lǜ ㄋㄧㄢˊ ㄉㄨˋ ㄧㄥ ㄕㄡ ㄏㄨㄛˋ ㄎㄨㄢˇ ㄅㄞˇ ㄈㄣ lv4