For quantities of Bitcoin below a whole coin I use Sats. Over a whole coin and up to two decimals precission, Bitcoin. Over a whole coin and higher accuracy than 2 decimals, whole Bitcoin units & remaining Sats, e.g:

1 丰 = One Sat

1,000 丰 = One thousand Sats

1,000,000 丰 = One million Sats

10,000,000 丰 = Ten million Sats

100,000,000 丰 = ₿1 = One Bitcoin

150,000,000 丰 = ₿1.5 = One point five Bitcoin

155,000,000 丰 = ₿1.55 = One point fifty five Bitcoin

155,500,000 丰 = ₿1.555 = One Bitcoin and fifty five point five million Sats

1,002,050,000 丰 = ₿10.0205 = Ten Bitcoin and two point 'O five million Sats

10,080,005,000 丰 = ₿100.80005 = Hundred Bitcoin and eighty million five thousand Sats

132,500,547,500 丰 = ₿1,325.005475 = One thousand three hundred and twenty five Bitcoin and five hundred fourty seven thousand and five hundred Sats

Any other units, I'm not interested. Fuck Bits, µ₿, MSats, and all that nonsense.