This research was carried out on 1 until 11 August 2018 in Tanjung Bunga Village, Pangururan District, Samosir Regency. The purpose of this study was to determine how much investment and income costs, analyze how business feasibility is reviewed based on the investment criteria of the KJA business with Scale I, namely 10 cages, Scale II 20 cages, and Scale III 30 cage bags. This study also aims…