To be fair, those values are subjective and there’s no way their squad is the most valuable. Inflated figures to try and make them look good.
we have spent the most over the last 12 years, 10 years and since pep but there are other measures during the last 6/7 years depending on where you take it where United are top of the spend list and more so on wages.
Liverpool have spent loads over the entirety of the last 30 years by comparison with less success.
Of course, adjusting historic figures for inflation is also a worthy exercise.