What is CTC formula?

Could you please elaborate on the CTC formula? I'm curious to understand its purpose and how it's used in the cryptocurrency and finance world. As a professional practitioner in this field, I've encountered various metrics and formulas, but CTC seems to be a new one for me. Could you provide a concise yet comprehensive description of what it stands for, how it's calculated, and its significance in analyzing or predicting market trends? Additionally, is it a widely accepted or emerging metric within the cryptocurrency community?