How does Gold Trading work?

Hello everyone, not sure if this the right section so If an admin can change it to the right that would be great.
So I attempted to do gold Trading at the start of my Sythe journey but in all honesty didn't really understand it..
If a player sells you gold for lets say 0.31/m (07) and you sell for 0.32/m(07) how do you profit?
Doesn't every crypto business/application charge you a small percentage for withdrawals so how do these big bulk buyers make a profit?
As well as this doesn't the price of BTC / Ethereum fluctuate on a daily basis?
Trading on a large scale (daily in large amounts) doesn't that cause bans? Do Buyers use a VPN?




These questions are just for me to understand how to get into this, I want to just focus on 07 Gold trading.

Thanks

 

bump

 

I think sellers will usually charge $0.4 so you make $10 off of 100m. there are some bans yea i guess you just deal with it

it' just business.

be careful who you do business with and hopefully jagex doesn't ban you

 

from what I have seen it's usually like a 0.01 difference in buying and selling?