I am annoyed when I find a bot that will give the wrong amount of gc. I cancel the trade and go to a different bot, and if the item is priced the same, find the same math error on a second bot. This shows that there is some very sloppy coding on many bots. For example: How in the world does .61 x 100 = 60 and not 61?
Not sure who is doing the math or the programming code, but come on get the math right!!