What amount do I report as basis for my Roth IRA recharacterized last year from a simple IRA on form 8606 this year when reporting my 2018 contribution?

Since I converted my one and only simple IRA to a Roth and the entire sum was subject to taxes, am I assuming correctly that sum is my initial basis for my Roth this year when reporting my 2018 Roth contribution on form 8606?