What does the shrimp count mean?

Shrimp count indicates how many pieces (individual shrimp) are in a pound. The higher the count the smaller and cheaper usually the shrimp are. The customer is paying for more meat and less work as the count goes down. We carry 36/40ct for our mediums they are the size of ones average pinky finger and our larges are 21/25 ct the size of ones average index finger.