When you export a basket it only shows the replacement price, but that's not necessarily the price you paid. The actual cost and/or budgeted cost should show in that spreadsheet otherwise exporting the basket really isn't helpful because the pricing info isn't right.
Maybe it should be possible to configure the fields exported, so that when a library is using this to generate orders to their vendors they can influence which information is output.
Basekt export in acq is now fully customizable using CSV profiles