On June 20, 2021, Jerome had $300 in his checking account and owned a car worth $10,000. He owed his father $500. On July 1, he received his monthly paycheck of $2,000. During July, he spent $400 on food, $500 on rent, and $500 on other items. He paid his father the $500 he owes him. What was Jermone's net worth on June 30, 2021