关于cfa一级，应收账款天数的一个问题 应收账款, business, annual, average, account

AnalystAlan

答案中这样一段话，
outstanding account are paying more slowly since the average colleciton period is up,我的理解是这里的collectperiod应该用公式，receviable turnover =annual sales / average receivable,  days of sales outstanding =365/receviable turn over，那么period up ，turnover就应该下降，那么 annual sales / average receivable,下降
Blockdnick has a less creit outstanding since the days of receviable down, so creidit sales are a smaller part of his business
这里是不是应该用公式，365/ receviable turnover =credit  sales / average receivable ，days down，那么turnover上升，就是credit  sales / average receivable上升，
这样推倒出，应该是credit sales占的比重大了，怎么是less呢，哪位高人来给解答下呢？