This is an land purchase calculator to aid in planning costs. To use it you simply enter the proper amounts and check the boxes if applicable. For instance, if you want to know the purchase costs for MyCoolCityName's next batch of land, and it currently has 500 land and you want to end up with 2000 land, in "Starting Land" you enter 500, in "How much to end..." you would enter 2000. Then click calculate. Voila! You now know how much it will costs to purchase that amount of land, so start saving!