Louise had AGI for 2020 of $30,000. During the year, she made the following cash charitable contributions: church $500; United Way $100; Easter Seals, a qualified charity, $50; and the American Cancer Society $100. She also donated used clothing and household items to Goodwill valued at $450. In July, she donated publicly traded stock worth $20,000 to the University of North Carolina. She had acquired the stock 30 years ago for $1,000. What is her charitable contribution deduction for 2020?