Susan and Stan Collins live in Iowa, are married and have two children ages 6 and 10. In 2015, Susans income is $38,000 and Stans is $12,000 and both are self-employed. They also have $500 in interest income from tax-exempt bonds. The Collins enrolled in health insurance for all of 2015 through their state exchange but did not elect to have the credit paid in advance. The 2015 year-end Form 1095-A the Collins received from the exchange lists the following information:

Annual premiums $9,800

Annual premium for the designated silver plan in the state $10,800

Compute the Collins premium tax credit for 2015.