I have never tried to sell any of my sewing, just for gifts.
However, there was a time, I thought I might, and since then, have kept a "black book"...no kidding, the first one was black...with all receipts, store, name of fabrics, amounts,...you name it. Also leave room to make notes on page, when I use a piece of a fabric.
With all that, you would think, I could readily tell you, how much money has went into one of my projects...nope...I could do that with gbaby projects...but for some reason, have always been afraid to actually add up the cost of a bed size quilt. Why do I keep cataloguing all that info?
You tell me! :roll: