The difference between the sale price and the cost price of an item.
Net balance of an investment, which is the difference between the capital invested and the value of this capital increased by accumulated interest.
This is usually expressed as a percentage of the cost price.
Example
An item was purchased at a price of $100 (cost price) by a vendor, who later sold it for $125 (sale price).
Therefore, the profit is $25. Expressed as a percentage, this amount represents a profit of 25%.