4. Below is a table of 4 workers and how many calculators and butter they can make. Currently all the workers are making calculators. Mark the best order to move these workers out of calculators and into making butter on the line before each worker's name (writing 1, 2, 3, and 4). Then draw the PPF line for this economy. Put butter on the horizontal axis. Calculators Butter Arnold 4 8 2 Betty 2 6 3 Charles 4 4 Diana 6 2 0.3