Taking bitcoin transfer as an example, a common transaction occupies about 250 bytes, and the handling fee is about 0.001-0.0015 Bitcoin (about 20-30 yuan).
Bitcoin transaction fee usually far lower than 0.001 - 0.0015
BTC (about $8 - $12).
0.00000226
BTC (about $0.17) or 1 sat/byte is sufficient enough for most cases, unless fast confirmation is necessary.