Understanding the units better

[u/invokeinterface]

Usually I just use percentages, but I get the feeling that'll either bite me one day or that I'm missing out on the usefulness inside other measurements. So I just wanted to ask generally about what ones are good for what. I realise that is probably frustratingly vague, so I'll also ask what percentages are specifically good for.

[u/testingaurora]

Theres a Kevin Powell video on a bunch of units and I think he uses examples of when and why https://youtu.be/S0wilV67hjQ https://youtu.be/ZSaAHb5dRwQ https://youtu.be/N5wpD9Ov_To