So, let's start by talking about what makes unbalanced/balanced Trade Orders!
Mind you, that's just my opinion.
It will give us 5 IOU's (it's long/hard order)
and
It will give us 2 IOU's (it's medium order)
My opinion Papers lower cost VS 12 Iron Bars,
I don't know about rate "rare" a baby squid but for me 12 iron bars type order is like long order, isn't medium order with current smelting system
and It's difficult to determine the price trade orders