Kevin and Shuang have two children, ages 8 and 14. In 2023 they spend $6,400 on eligible employment-related expenses for the care of their children after school. Kevin earned a salary of $15,200 and Shuang earned a salary of $68,000. What is the amount of the couple's credit for child and dependent care expenses for 2023?

$600

$620

$1,200

$1,280