Just out of interest , how much did it cost?

我只是好奇问问，这个花了你多少钱？

《牛津词典》

Residual income is a measure of the center's profits after deducting a notional imputed interest cost.

剩余收入是中心扣除名义估算利息成本后的利润的度量。

youdao

The money you spend plus the foregone interest represents the real cost of spending.

你支付的钱加上你放弃的利益才是你真正的消费额。

youdao

Recently, a premier Islamic finance scholar, Mohammed Taqi Usmani, declared some aspects of sukuk to be un-Islamic, specifically the buyback at cost and the interest-free non-recourse loans.

FORBES: Legal Lip Service

But much the same result could be achieved by capping the exclusion for employer-provided health care (exempting most lower-cost plans) and replacing the mortgage-interest deduction with a tax credit.

ECONOMIST: America's fiscal deficit

The argument for not investing in a 401(k) stems from the possibility that the cost for servicing high-interest debt may outweigh the potential performance on retirement plan assets.

FORBES: When Not to Invest in Your 401(k)