Agbar manages the water supply of more than 1 million homes, companies, and administrations in more than 250 municipalities in Catalonia and the Balearic Islands. It is a benchmark company in water management and innovation, with a firm commitment to protecting the environment and improving people's quality of life. Like any large company, this one manages various fields related to water supply, among which, this report will focus on Aqualogy Solutions, a particular group that is dedicated to the maintenance of water metering equipment and at the same time, offers a monitoring service and continuous improvement to customers in terms of profits. The report will describe in depth the CMB tool, an internal Aqualogy Solutions app that allows an economic evaluation to be made of the investments made when changing water meters. However, in order to understand the relationship between CMB and profit analysis, a brief introduction to other tools and systems will also be given