Each resident of Missouri veterans’ homes who has a regular source of income or other financial means shall make monthly payments by the tenth of each month to defray, or partially defray, the cost of maintaining residence at the home. The amount to be paid shall be determined by the executive director with the approval of the commission, who, in making the determination, shall take into consideration the income or other financial means of the resident, and the cost of the care provided. No charge to any resident shall be more than the averaged cost of the care provided.