What is the rule of thumb for ramps?

Could you elaborate on the "rule of thumb" for ramps in the cryptocurrency and finance world? Is it related to trading strategies, liquidity management, or perhaps a guideline for entering and exiting positions safely? Understanding this concept would help traders navigate the market more effectively. Is there a specific formula or percentage that's commonly adhered to, or is it more of a situational judgment call? Clarifying this would be invaluable for those seeking to optimize their crypto-related financial endeavors.