What is the manual fee for a 30-gram silver bracelet? I'd like to exchange it for 24 grams.

As far as I know, the manual cost of silver bracelets is generally calculated in grams, which is about 0.2 yuan per gram. So the manual cost of a 30g silver bracelet is 30 times 0.2, which is equal to 6 yuan. The manual cost of 24g silver bracelet is 24 times that of 0.2, which is equal to 4.8 yuan.

However, please note that these are reference prices, and the specific prices may need to be inquired and confirmed according to local actual conditions.