One cotton jacket = ...?

I found this size 18 cotton/acrylic jacket at kmart yesterday for a whole $17.25.
It was soft and not too bad of a colour so I thought I'd give it a go at frogging it.
Result...600g of double stranded yarn. I think it must be about a 4ply weight, doubled.
The seams were a bit nasty to deal with, and I had to cut the ribbing off the sleeves, because it was just a huge mess to try and undo.
Now just don't ask me about the bajillion little pieces of fluff all over the house...