Coal purchased at the [[Blacksmith]] costs {{Price|150}} during Year 1, so it is cheaper in Year 1 to buy 10 wood for {{Price|100}} from [[Robin]] at the [[Carpenter's Shop]] and convert that wood into coal in the [[Charcoal Kiln]]. After Year 1, wood pricing increases to {{Price|50}} per piece but coal increases to only {{Price|250}}, so it is cheaper to purchase coal directly. | Coal purchased at the [[Blacksmith]] costs {{Price|150}} during Year 1, so it is cheaper in Year 1 to buy 10 wood for {{Price|100}} from [[Robin]] at the [[Carpenter's Shop]] and convert that wood into coal in the [[Charcoal Kiln]]. After Year 1, wood pricing increases to {{Price|50}} per piece but coal increases to only {{Price|250}}, so it is cheaper to purchase coal directly. |