There is no absolute scale for measuring the amount of knowledge held by a person, or held by an organisation.
There is no "milliknow, centiknow, kiloknow, megaknow" metric scale for know-how. No scales, no tape measure.
What you can measure, is a change in knowledge - "Yes, I know more now than I did before this meeting, or this conversation".
You can also measure the effect of this knowledge - "Now that I know more, I can perform this task faster, or more cheaply, or to a better quality".
It is therefore far easier to measure the FLOW of knowledge, than it is to measure the STOCK, and through Flow, to measure VALUE.