When attempting to repair a door and you don't have enough wood, it tells you how many units you are short, but not have many you have, or the total amount required. Since wood of different grades counts for different numbers of units per board, it would be easier to estimate how many more boards you need of whatever kind you have, if it said for example: "You have only 337/1500 units required," or "You need 1163/1500 more units of wood to repair this door." Presently it simply says "You need 1163 more wood."