Your job numbers

Rough numbers are fine. Use a normal month, not your best one. Everything about selling the method to other shops depends on these, and you're the only one who has them.

Your shop

Frame jobs a month

Average ticket ($) what the customer pays

Parts and materials per job ($)

Hours per job

Shop cost per hour ($) rent, power, insurance, labor

Comebacks a year jobs that came back

Jobs turned away a month no time or no room

What they add up to

Money in a month-

Kept per jobticket minus parts minus shop time-

Kept per month-

Each hour of work brings inticket minus parts, divided by hours-

Comeback ratecomebacks out of a year of jobs-

Turned-away work, a monthmoney in, and what you'd have kept-

What this tells a partner shop

At your numbers, one more frame job a week would be worth about this much kept in a year to a shop:

Illustrative only, from your inputs. Another shop's prices, costs and skill will be different. Never show this to a shop as a promise or an estimate of what they'll earn: income claims to a shop are what turn a class into a legal problem. It's here so you know whether the method is worth selling at all.