Answer:
Operating expenses
Step-by-step explanation:
Before a business yields a profit as an output , there is a need for some input from the business owners. One of these input is operating expenses .
Operating expenses is supporting cost of keeping the business running in the course of normal production , different from the cost of production and is necessary as every form of other cost may not get a desired result without the operating cost.
Examples include rent , payroll ,transportation , security fees among others.