margin of profit
profit margin
gross margin

Over all, the company had a full 1 percent increase in its profit margins, he said.

Their profit margin is still over 90 percent, just as I said.

In 1994, we were making a profit margin of 30 percent.

Right now, the profit margins are between 2 or 3 percent.

How would those great big companies keep up their profit margins?

Must be a big profit margin for the film companies.

Profit margins of up to 20 percent are, however, very real.

Profit margins for this type of business go between 4% and 70%.

The profit margin has not increased in most years, they say.

He has also said that his company's profit margin is less than 10 percent.