A computer salesman consolidates his branches in five different parts of the city with relatively narrow spaces, in the center of the city. He wants to continue selling computers in a big shop at some point. Currently, The average demand for the shop is 8000, the standard deviation of the demand is 880, and the average of computers The procurement period is 4 weeks. After the branches were merged, the improvements in the procurement process It is thought that this period can be reduced to 3 weeks. The cycle service level is targeted at 90%. How many computers should the safety stock level be determined before and after the transition to the big store in the enterprise?