The optimum combination is also called the least cost combination. It is the number of factors that is used by companies to produce a specific product at the least possible price. It is the efficiency of the company in other words.
The optimum factor allows businesses to calculate the right budget for every task keeping all their factors in view. In this manner, all of the above factors seem to be right. Microeconomics pushes businesses to develop and allows owners to avail the maximum profit; it also helps them plan ahead of time, which is beneficial for their business empire.