Formula To Calculate a Knowledge's Worth

What is a possible metric one can use to estimate the value of particular information or knowledge? I personally believe, if nothing else is known (see principle of indifference), it should be based on time, hence the following formula:"Value of Knowledge = Time Utilized/Time Spent Learning"E.g. if you spend 1 hour learning something and only use it for another hour in your whole life, the value of that knowledge = 1.

If you learn a new habit that took you 100 hours to learn, yet you use it every day (let's say 1 hour a day), then over a span of 5 years its value = 43800/100 = 438!

Another well-known example is how many modern students/people tend to learn stuff that they may never use in their life. But let's say they learn a bunch of stuff they only use for a total of 1 hour in a span of 1 year and it also took them 0.5 hours to learn each of that knowledge. This would give us a value of "2" (1/0.5) accumulating every day.

In a span of 1 year, their pool of knowledge at the end of that year would equal 2x365 = 730.

Now, let's say you choose to learn somewhat more relevant knowledge you use for 1 hour every week (52 per year) and also takes you 0.5 hours to learn (value = 104/year). In order to beat the value of their knowledge, you'd only need to learn 7 things as opposed to their 365! (730/104) E.g. learning 7 new habits (as opposed to random knowledge).

Again, because nothing else or nothing much is really known (beforehand) determining a knowledge's value, we base it on time (again, see principle of indifference). We could also base it on money or something else. Even something subjective such as happiness. I used time for this example, however.

These examples also serve more as an insight to how big of a difference it can make to learn stuff that's more relevant.

The image is an example of how, the closer you get to "wisdom", the more you should multiply a particular knowledge's value, again stressing that value depends on much more than e.g. time.

What do you think of this? Or how do you estimate the value of something?