The answer is 6.90. Could anyone explain the process to get it. Thanks!

Laurier Inc. had total assets at the beginning of the year of S 5000000 and total assets at the end of the year of S 1000000. The following contains information on Lauriet Inc.'s statement of income for the year: Sales S 800000 Interest expense S 9000 Income tax expense S60000 Net income S200000 Calculate Laurier Inc.'s retum on assets (ROA) for the year. Express your answer as a percentage rounded to two digits (i.c.3.84)