Heidi (age 57) invested $4,000 in her Roth 401(k) on January 1, 2012. This was her only contribution to the account. On July 1, 2020, when the account balance was $6,000, she received a nonqualified distribution of $4,500. What is the taxable portion of the distribution and what amount of early distribution penalty will Heidi be required to pay on the distribution