Calculate return on assets for 2020?

The following data was taken from the accounting records of White Oleander Corporation: 2019 2020 $950,000 250,000 $850,000 240,000 75,000 75,000 300,000 300,000 325,000 235,000 Total assets Total liabilities Preferred shares Common shares Retained earnings Additional data: Net income Interest expense Sales revenue 140,000 25,000 980,000