Metal is actually a more powerful version than Power Levels in dbz (PL), Metal is the same as PL, the only difference is, that Metal is significantly stronger, 0.1 Metal is a thousand PL, so an averge baby on Tfo, who has 0.4 Metal, which converting into PL, is four thousand, meaning a baby is stronger than a yamcha in the early stages of Dbz, and even some characters.
MORE MEANINGS AND CONTEXTS WILL ARRIVE SOON IF QUESTIONS.