Added missing dates to rows

[tiverson]

I want to add dates to records that are missing them.

After the dates are added, I want to calculate a value based on another record.

I'm guessing I want to use the Multi Row Formula, but not sure.

Data 

Output

[Thableaus]

Hi @tiverson 

See solution attached. Change the input file to your own input and see if it works.

Cheers,