8606 roth conversion

I converted to Roth GSIRA a non deductible contribution. $7000.  

 

we did Roth IRA conversions of $7000 for myself and $7000 for spouse using non-deductible IRA reported in 2022. How do I enter this amount in Form 8606 in line 16 for both of us. I received 5498

 

what will be line 6 on 8606

 

Will this shows up has taxable in Line 4b on 1040?

 

total net income is above $350K