Help!!! This is the last question on my homework and I don't understand it!

Advantage Housekeeping Service prepares a monthly income statement. For the past month, it collected $3,150 from customers for its services. It had $70 in allowances for jobs that had to be redone. Operating expenses included salaries and wages of $1,800, supplies of $315, and other expenses of $94. What was its net income for the month?

Question

Help!!! This is the last question on my homework and I don't understand it!

Advantage Housekeeping Service prepares a monthly income statement. For the past month, it collected $3,150 from customers for its services. It had $70 in allowances for jobs that had to be redone. Operating expenses included salaries and wages of $1,800, supplies of $315, and other expenses of $94. What was its net income for the month?