Answer:
Surplus value.
Step-by-step explanation:
Surplus value can be defined as the value of a work done which exceeds the cost of labour. It also refers to extra value or work out in by the worker. Capitalist take advantage of this extra value to classify it as profit when the products are sold.
The amount of money that capitalist pay their workers is less than the value in which the workers have added to the goods produced, thereby leading to exploitation of the workers.