Figure 7-6 shows a learning curve which indicates that average cost declines from about $ 250 for producing the 100th unit of the product (point F), to about $ 200 for producing the 200th unit ( point G), and to about $165 for the 400th unit (point H ). Note that the average cost declines at a decreasing rate so that the learning curve is convex to the origin. This is the usual shape of learning curve; that is, firm usually achieve the largest decline in average input costs when the production process is relatively new and less decline as the firm matures.