I opened a new IRA account and made contribution $7,000 to this account in December, 2019. I found the contribution amount is over the limit, I have to remove $4,500 to avoid penalty. There is small amount interest gain in this account. The financial institute said "the amount returned will include any net income (gain or loss) attributable to the excess contribution". How much of the gain shall I remove? All the gain or proportion?
