[CFA入门] 请教L2 mock一题 （09年的） thousands, percent, account, interest, afternoon

arabdopsis

 09 L2 mock afternoon 第30题

If the proposed distribution center were financed 40 percent by debt, the account income (in BRL thousands) for the first year would be closest to：

答案在算interest的时候是算30x 0.5x0.085； 我的疑问是既然是40% financed by debt，为啥不是x0.4 呢？ 

多谢多谢！