Guild Wars 2

As the title says “how do buy orders work”

Lets say for example ore is 2s 80c, and I try to buy some at say 1s 45c.
Does that mean anyone selling ore will see my offer 1st if its the lowest offer.

The highest priced buy order is filled first. When buy orders are placed at the same price, the orders are filled in the order they were placed.

If the highest buy order is 1s 44c, and you put one in for 1s 45c, you’re first in line.
If the highest buy order is 1s 45c with 100 listings and you put one in, you’re 101st in line.
If someone puts a buy order in for 1s 46c, they’re now first.

Ok thanks for your responce so when, someone right clicks, sell on to etc the 1st price they see is the highest buy order is that correct

Yes, by default the highest buyer is selected when trying to sell something.