How do i calculate net in math?

Answer 1

"Net", as in "net profit", or "net income", usually refers to the difference between selling price and the cost to produce something, or the difference between the total money you get, officially (as salary) and different discounts); so you need to add all income, and subtract all costs or discounts.

Answer 2

Net refers to a basic amount after adjusting for some other contributing factors.For example,

Net weight = weight of container (tin) and contents minusweight of container (= the weight of the stuff that you are interested in).

Net income = Total pay less taxes and other contributions (= the total amount of money that you actually get).

Purchase price = Retail price plus sales tax (VAT) (= the total amount of money you have to pay).