1, with the structure of the product, the size, the number of cavities have a relationship.
2, precision molds are generally more expensive. There are also different levels of mold factory, the price is not the same.
Cup size products 1 out of 4 at least 50,000 above, a good mold factory, to more than 100,000 above.
3, your product to play how many thousands of molds, generally 500,000 molds below the soft mold. Mold material hardness is low and cheap, more than 500,000 mold mold material hardness, more expensive.
Don't know where you plan to do the mold.