What about using 30M instead of 30K or saying 30 thousand?

Using "30M" is a concise way to represent 30 million, which can be particularly useful in financial contexts or data presentations where space is limited. However, "30K" indicates 30 thousand, which is significantly smaller and may lead to confusion if not clearly defined. Saying "30 thousand" is more explicit and easier to understand for a general audience, avoiding any potential misinterpretation. Choosing between these formats depends on the context and the audience's familiarity with numerical abbreviations.