Time it takes to achieve sales target for new employees

[sublog]

Need to calculate ramp up time to achieve a fixed sales target. I have their start dates, just need to figure out how long it takes them from their start date to achieve that goal. 

Salesperson A: 9 months

Salesperson B: 12 months

etc. 

Seems simple, but I can't figure it out. Please help. 

[mahoneypat]

Please share some example/mock data to get a better proposed solution.  Basically, you can get this with a measure in which you:

1. make a variable with the start date

2. make a variable that calculate the minimum date where the sales are above/equal to the target, using CALCULATE and FILTER

3. use DATEDIFF to get the time between 1 and 2

Regards,

Pat