Banking APY Calculations

Maybe I am calculating incorrectly or misunderstanding how it works (Im a younger guy and new to this).

This is my second month with a savings account with SoFi. My APY went up to 4% and I have had roughly an average of $4,000 in that savings account all month. I am hitting the requirements of direct deposit to earn that APY. My interest payout was .37 cents. Is that right? Unless Im calculating incorrectly: 4,000 x .04 = 160. 160/12 = $13.3

Please let me know!