问题如下：
2. When recommending Brown convert to a PlusAccount, does Klein violate any CFA Institute Standards?
选项：
A.No.
B.Yes, relating to suitability.
C.Yes, relating to reasonable basis.
解释：
A is correct.
Klein does not violate CFA Standards when recommending a PlusAccount to Brown. His actions comply with Standard III(A) —Loyalty, Prudence, and Care; Standard III(C) —Suitability; and Standard V(A) —Diligence and Reasonable Basis. As required, he discloses the fee structure. Based on the fee structure and Brown’s annual commissions, the PlusAccount appears to be a suitable investment vehicle. By converting to PlusAccount status, Brown will incur an annual fee of $5,750 and save approximately $6,400 in annual brokerage commissions. The potential savings of approximately $650 provides a reasonable basis for recommending PlusAccount status.
自己问：老师好，何老师讲了答案中5750的计算方法，请教下答案中的另外两个数字是怎么得来的，分别是6400，和650。谢谢
