Respuesta :
Net income (NI) is a company's total earnings (or profit); net income is calculated by taking revenues and subtracting the costs of doing business such as depreciation, interest, taxes and other expenses. ... Net income also refers to an individual'sincome after taking taxes and deductions into account.
google
I believe its subtracting the expenses subtotal from the net income will give you the income subtotal. I hope this helps:D