User blog comment:Zombieman1350/Last Stand Screenshot Puzzle 2/@comment-26531060-20130207032658/@comment-5792287-20130207092531

Basically, you need to work out the cost of HALF of the plants, but he planted them in a specific order. Work out how much sun he would have left after planting half of the plants.

He starts with Lily Pads, then Tall-nuts, then Pumpkins, the Magnet-shrooms, then Gold Magnets and Marigolds are the last things he plants, and the lines mark which order he planted each type of plant.