Fighting over crumbs, or the price of home made bread

Bread numbers According to me, including ingredients and electricity, but not my labour, I'm making artisan bread for about $3.86/kg. InputQuantityUnit priceCost Stoneground wheat flour inc delivery500g6.20 kg3.10 Rye flour from Bin Inn for starter80 g4.00 kg0.32 Estimated electricity baking in oven1.3 kWh0.33 kWh0.44 3.86 (Salt is negligible, and I have a sourdough starter which I never bother feeding in between baking so no cost for yeast.) The Warehouse is selling some very, very cheap bread at $3/kg, mid-range supermarket bread like Molenberg is generally more than $4/kg. (If you use Grocer it will not only let you compare between supermarkets but also give you a unit price, very handy.) I could beat the Warehouse if I downgraded from my very fancy local stone-ground flour to Pams, and still get a very good result. In fact it would be only $1.17/kg. My labour is about 15 minutes of actual work, plus the commitment to check in on it from time to time, and be available to stick it…