I am having trouble figuring this out, it is very confusing to me, could you please help with explaining?

Analyzing Operational changes Operating results for department B of Delta Company during 2019 are as follows: Sales Cost of goods sold $540,000 Gross prot Direct expenses Common expenses Total expenses $124,000) Suppose that department B could increase physical volume of product sold by 10% if it spent an additional $40,000 on advertising while leaving selling prices unchanged. What effect would this have on the department's net income or net loss? {ignore income tax in your calculations.) Use a negative sign to indicate a net loss answer; otherwise do not use negative signs with your answers. Sales Cost of goods sold Gross prot Direct expenses Common EXPENSES Total expenses Net income (loss)