Traditional IRA to Roth IRA conversion

I made $7500 after tax  contribution to a traditional IRA account at Fidelity in December 2023. In January 2024 I transferred the $7500 to a Roth IRA also under Fidelity. I did it online. In Fidelity, it is probably called "transfer" (from traditional IRA account to Roth IRA account) . I thought this is a backdoor conversion. When I used Turbotax to do my tax, on this page called "Tell Us How Much You Transferred", the question is like this - How much of the the $7500 you contributed to a traditional IRA for 2023 did you switch, or "recharacterized" (this does not include conversions or rollovers), to a Roth IRA?

Amount Switched from a Traditional IRA Contribution to a Roth IRA Contribution "??"

How should I answer this question? - 0 or 7500?