Many prices on items were determined by market prices like what people were selling those same things for in Rome.
Olive Oil and Wine were Italy's main exports.
Industrial and manufacturing activities were smaller
The largest such activities were the mining and quarrying of stones, which provided basic construction materials for the buildings of that period.
In manufacturing, production was on a relatively small scale.
The economy of the early Republic was largely based on smallholding and paid labor.
However, foreign wars and conquests made slaves increasingly cheap and plentiful, and by the late Republic, the economy was largely dependent on slave labor for both skilled and unskilled work. Slaves are estimated to have constituted around 20% of the Roman Empire's population at this time and 40% in the city of Rome.
The way good were transported between cities were by roads. Horses were too expensive.