Buying real estate nothing down is easy; handling negative cash flow, repairs and other expenses in the meantime is the trick.

买了房地产最后却空手而归是常见的，有人说他能同时处理好负现金流，维修和其它费用只是骗人的罢了。

youdao

The main affecting factors of scale efficiency of insurance are running expenses and premium. The negative effect of running expenses is larger than the positive effect of premium.

影响保险公司规模效率的主要因素是经营费用和保费收入，经营费用的负向影响作用大于保费收入的正向作用。

youdao

The company has also reiterated its commitment to original programming in its letter to shareholders, although it notes that commitment comes with some front-loaded expenses that will result in negative free cash flow for the next "several quarters" beginning with Q4.

ENGADGET: Netflix Q3 2012 earnings: 2 million more streaming subscribers worldwide, $8 million net income

And a company must not have a high level of debt, since a moderate business downturn can have a very negative affect on a company when it is stuck with a lot of interest-rate expenses.

FORBES: Making Hay With Marty Zweig

So, if the percent is high, that could be a negative for a given stock, since a dip in revenues, or a spike in expenses (or any other myriad of combinations that lower net income) could make the dividend unsustainable.

FORBES: 18 Uber Dividend Aristocrats For Income Seekers