Someone please explain to me how to read the matrix. WHY IS IT 125 and 105. I have no idea what to add up or hopw to do it. Please explain how to do the math and what to look at!!!!!!

Roy Creasey Enterprises, a machine shop, is planning to move to a new, larger location. The new building will be 60 feet long by 40 feet wide. Creasey envisions the building as having six distinct production areas, roughly equal in size. He feels strongly about safety and intends to have marked pathways throughout the building to facilitate the movement of people and materials. See the following building schematic. His foreman has completed a month-long study of the number of loads of material that have moved from one process to another in the current building. This information is contained in the flow matrix on the left below. Finally, Creasey also developed a matrix to indicate distances between the work areas shown in the building schematic, shown on the right below. The highest flow that exists between any two departments = units (enter your response as a whole number). Based on the given flows between processes, one should ensure that the processes Drills and between each other. are in rooms next to each other as they have the highest number of moves units (enter your response as a whole number). The second highest flow that exists between any two departments = are in rooms next to each other as they have the second highest number of Based on the given flows between processes, one should ensure that the processes Materials and moves between each other