KNOWLEDGE BASE:

Applying COGS thinking to services = Cost of Services Sold (COSS):

Service businesses have input costs too. Just because they're not technically COGS doesn't mean you can ignore them. Count your COSS too.

Why knowing your per-unit costs is so important for product businesses

When you hear an entrepreneur say something like 'I'll make it up in volume', what they are usually really saying is 'I don't know my costs'