Depends on how you treat your crew. It won't be like a game, heh. Roleplay treating your crew well and they'll stay in line... for a lot longer than if you didn't.
The new world could possibly have berry bushes, you could send people out to hunt, raid native villages you find, steal from natives, take *their* wealth, take other peoples wealth, look for trade/supply ships in the area. Just pick a destination and decide how you want to start.
My post said "1/3" and "2/3" but that's just for roleplay. You have No Manpower, Minimum, Average, and Maximum. Doesn't matter if you put 2 people or 20, if you have Minimum, you have minimum.
From the googling I have done, English Galleons have ~900-1500, Race-Built
versions (smaller, probably faster) had less than ~300.
French Galleons Have about ~1200.
Spanish Galleons Feel good around ~1000.
These are Combat Complement Predictions
, and if you have this many people, you should make sure you can feed them.
Minimum crews for Galleons seems to be sustainable at 100 men and a little less.
You should see similar numbers for Carracks, if not less, due to them being classed as civilian ships more than combat vessels at this time in history, meaning the space for crew and bunks is now used for supplies and cargo more. However, because of their size, a similar complement is necessary for Minimum.
But I will not crunch these numbers. You need far less men to defend, than to assault. If you want to crunch numbers, go ahead, but I am only following roleplay predictions and the Manpower Levels I have stated