Cost (コスト)

The Cost of a player is generally related to how good the player is. For example, Yuki Yanagita (2018: .352, 36HR) has a much higher cost than teammate Kenji Akashi (2018 1/3 season, .282, 5HR)

Higher Player Ranks also have a higher cost.

Cost also goes up with each new Player Series.

In your Order (オーダー), you have a team cost limit that goes up with each Team Experience Level.

One of the Challenge Cup (チャレンジカップ) is a "low cost" (recently 350) tournament.