In a continuous review inventory system, the lead time for door knobs is 4 weeks. The standard deviation of demand during the lead time is 100 units. The desired cyclo-service level is 92 percent. The supplier of door knobs streamlined its operations and now quotes a 1 week lead time. Refer to the for z-values. How much can the safely stock be reduced without reducing the 92 percent cycle-service level? The safety stock can be reduced by door knobs. (Enter your response rounded to the nearest whole number.)