i need help in this question the cumulative distance based on the overall movement of material between processess for this layout is ___??____feet

Registration at Dalhousie University has always been a time of emotion, commotion, and lines. Students must move among four stations to complete the trying semiannual process. Last semester's registration, held in the fieldhouse, is described below in Figure 1. You can see, for example, that 420 students moved from the paperwork station (A) to advising (B), and 550 went directly from A to picking up their class cards (C). Graduate students, who for the most part had preregistered, proceeded directly from A to the station where registration is verified and payment collected (D). The layout used last semester is shown in Figure 2, where the distance between two adjacent stations is 30 feet. The registrar is preparing to set up this semester's stations and is anticipating similar numbers. Figure 1. Interstation Activity Mix Advising Pick up Status Paperwork / Forms Station Class Cards Verification / Payment (A) (B) (C) (D) Paperwork / Forms (A) 420 550 60 Advising (B) 350 200 C Class Cards (C) 0 0 725 Verification / Payment(D) 0 0 Pick up D Figure 2. Existing Layout A B 30 30 D 30 Registration at Dalhousie University has always been a time of emotion, commotion, and lines. Students must move among four stations to complete the trying semiannual process. Last semester's registration, held in the fieldhouse, is described below in Figure 1. You can see, for example, that 420 students moved from the paperwork station (A) to advising (B), and 550 went directly from A to picking up their class cards (C). Graduate students, who for the most part had preregistered, proceeded directly from A to the station where registration is verified and payment collected (D). The layout used last semester is shown in Figure 2, where the distance between two adjacent stations is 30 feet. The registrar is preparing to set up this semester's stations and is anticipating similar numbers. Figure 1. Interstation Activity Mix Advising Pick up Status Paperwork / Forms Station Class Cards Verification / Payment (A) (B) (C) (D) Paperwork / Forms (A) 420 550 60 Advising (B) 350 200 C Class Cards (C) 0 0 725 Verification / Payment(D) 0 0 Pick up D Figure 2. Existing Layout A B 30 30 D 30