A study has been conducted to determine if Product A should be dropped. Sales of the product total $210,000 per year; variable expenses total $140,000 per year. Fixed expenses charged to the product total $90,000 per year. The company estimates that $40,000 of these fixed expenses will continue even if the product is dropped. These data indicate that if Product A is dropped, the company's overall net operating income would: decrease by $20,000 per year. increase by $20,000 per year. decrease by $30,000 per year. increase by $30.000 per year