Available time is 252 days a year * 2 shifts * 7 hours = 3528 hours a year.

Demand is 285 units a year.

So TT = 12.4 hours per unit.

Group A is 116 hours, so to you need 9.4 or 10 resources to meet takt time.

Doubt lead time is 397 hours. You might want to read The Goal to understand why.

I am a beginner and I am trying to figure out how to present the following a load balance chart with the following information

Volumes (mixed product) = 285 for the year
available working days = 252
shifts = 2 at 7 hours available for work

we have 5 different workgroups which touch the product with the following averages (# of hours per product, complete repair cycle)
group A = 116 hours
group B = 168 hours
group C = 17 hours
group D = 72 hours
group F = 24 hours

so the lead time is 397 hrs per product type (on average)

how do I show a balance workload based on this information? Please help

thanks