The most common scaling problem faced by startups is the inability to accept a large new order, since they don't have the cash to build and deliver the product. (profitableventure.com)
state - of - the - art statistical analyses and ongoing research including Item Response Theory analyses placing scores on common scale to accurately measure growth, forecast state test performance, and provide categorical growth analysis (ati-online.com)
The most common scales in the market can be found below: (giantmommy.com)