The purpose of Community Service (PKM) is to improve the understanding and ability of business owners and crew members (ABK) in conducting simple and applicable financial analysis. This activity will be carried out in Laha Village, Ambon City, in May 2025 with the main target of the Arumbae ship fishing business actors and their crews. This PKM is carried out in three main stages, namely: the preparation stage, the implementation stage, and the monitoring and evaluation stage. In the preparation stage, an initial approach is made to ship owners and crew members to establish communication and identify specific needs related to understanding and skills in financial analysis. The implementation phase includes training activities that are designed in a participatory and applicable manner, using Microsoft Excel software as the main tool in calculating and analyzing the feasibility of the business. The training material includes business feasibility analysis techniques, cash management, simple financial recording, and profit and loss projections. The benefits felt by the participants were very significant. Business owners now have a better understanding of the importance of financial management, and can prepare a business feasibility analysis independently. They also show an improvement in the ability to prepare simple financial statements, as well as being motivated to develop fishing ventures to a larger and more sustainable scale. Monitoring shows a noticeable increase in understanding and skills after training. This activity also has a positive impact on building an orderly and disciplined financial recording culture, which has not previously been a habit among fishermen. In the future, it is hoped that this training can be replicated to other fishermen groups in the coastal area of Maluku to expand the impact. The conclusion of this activity shows that an educational and practical approach is able to encourage the increase of fishermen's capacity in the financial aspect of business. This activity also opens up opportunities for the development of fishing businesses professionally and oriented towards the sustainability of the local economy.