How do you calculate MCRT?

Could you please elaborate on the process for calculating MCRT, or Mean Circulation Time? I'm curious to understand the specific steps and formulas involved in determining this metric, especially in the context of cryptocurrency transactions or financial markets. Are there any specific tools or software that are commonly used to facilitate this calculation? Additionally, what factors do you consider to be most important when interpreting the results of an MCRT analysis? Thank you for your insight.