More beans.....HAHAHAHAHA.
For my numbers, I just used the # of appliances I make, times 12.
However, some of the appliances I make add up to more appliance units. (in my small mind)
A retainer is a 1 unit(1 appliance). A Bionator is 3 units.( I can make 3 retainers to 1 Bionator) And it goes on from there.
So....your right on Rob I do about 7k plus units per year.
Difference is, I figure a working month at 21 days, not 20. You need to work your people 1 more day.
Have a great day!!
Mike.