IDIOMATIC EXPRESSIONS

bang for the buck:
- value for the money spent
We were able to get much bang for our buck when we advertised on the Internet.

bottom line(1):
- the total, the final figure on a balance sheet, the results (of a business)
After we examined the bottom line of the company, we decided not to invest in it.

bottom line(2):
- the central issue of a discussion, the main point
My friend wants to open a restaurant but the bottom line is that if we do not do more research I do not want to invest any money.

ball park figure/estimate:
- a rough estimate or figure
The contractor gave us a ball park figure for the cost of repairig the new building.