I name my ship E minacce con picchi di carpe osso
I buy 2 Pepper and 20 Chicken meat
I sail to Paris*
You buy two pepper and 20 chicken meat.
You sail to Paris. It takes 8 days to get there. You pay 640 ducats for crew.
The current price of selling pepper is 3116 per crate. The current price of chicken is 359 per box.
You can possibly get 24454 ducats as a result of your sale.
Buy full sail and full crew.
Buy up all Liquor, Western Books and Daggers (in this order if not enough money to do so)
Sail to Madeira.
You hire seven more crew with an initial price of 1000 D per man. You then buy 25 brandy for 18725 D and 35 western books for 21875 D. You have 2400 D left. Then, you sail for Madeira. It takes 4 days to get there, with a 580 D expense of pay.
Brandy can be sold for 645 per box: there was a fall in the market price. Western books can be sold for 670.8 per box.
@Repulsion
The bee wax merchant strongly disagreed with Alexandre, insisting the wax was worth exactly 966 ducats per box, no less! Alexandre bought ten boxes and ordered them loaded in his ship.
The marble merchant cut the price to 2750 ducats, no doubt due to Alexandre's less-then-optimal haggling skill. Still, it was good enough, and every ducat counted. He bought six crates of marble. Alexandre spent 16500 ducats.
Meanwhile, the parchment merchant was irked by Alexandre's rants of 'terrible', but wanting to empty his overhead, he grudgingly agreed to 1000 per box. (You did not specify how many you wanted to buy :/ Assumes ten.) Alexandre purchased ten boxes of parchment for 10000 ducats.
The olive oil vendor handed over the oil at 300 per box; the olive seller only sold at 250, a mere 5 ducats off. Alexandre also hired three strong sailors and finds a good stay-sail for 5000 ducats, along with free installation. He then set sail for Alexandria, which he shared his name with. Two days of sail (and 200 ducats) later, he entered port, only to be refused by the port authorities. First, he didn't know an inkling of Arabic. Second, he did not have the proper attire. The port officials did allow him to stay the night in port.
@Tiruin
The merchant eyed him, then asked, "Are you a Castellan?"
Juan replied yes.
The merchant looked at him again, and started rambling about "stuck-up French and arrogant Islamic merchants messing the hell up", before selling him 35 crates of salt at 30 crate's price, at 230 per crate. He patted him on the back and told him to stick it up to those foreigners.
Juan then went to the local bar. He greeted the owner, an old friend of his, and asked around for some decent men with some sailing experience. He hired eight Castellan sailors and headed towards Venice. Nine days of smooth sailing in the Mediterranean later, he docked at Venice.
Salt was selling at 241 per box, excluding tariffs. He could possibly net 7600, a mere 700 ducat profit, but profit nonetheless. Apparently, salt prices had slightly fell over the last week and some.