A cargo management system receives parcel data associated with cargo on a vessel. The parcel data may include bill of lading date, successor and predecessor data, cargo type data, and the like. The cargo management system identifies parcels that may be related, performs a parcel validation on the identified parcels, and receives or determines a relationship between the parcels. Then, the cargo management system performs voyage validation on the related parcels to create a voyage. The cargo management system then calculates a loss associated with each parcel, between parcels, and the entire voyage.