Gain is the financial profit that a person or company makes. People often use the word 'gain' when they believe that money is the only thing that someone is interested in
Developers continue to cut down the forest for economic gain.
Proceeds are all the money that you get from selling something, or from something such as a show or sports event
The proceeds from the sale of the house went to his brother.
A
surplus is the amount of money that remains after a company or organization has paid all its costs, charges, wages etc
The division’s surplus last year was under $10 million.
Interest is an amount of profit that you make at an agreed rate when you put money into a bank or when you lend money to someone
The best rate of interest the banks can offer is around 7%.
Return is the total profit that you get as a result of putting money into a bank, company etc
How can I get the best return on my capital?
Returns from farming have been declining for many years.
Yield is the exact amount of profit that you get as a result of lending money to a company, government etc
Shareholders should not expect a high yield this year.