The SPC does not include forwarding services to a new address. When a package is not deliverable or refused by the occupant, a SPC will attempt to locate a new address through publicly available address services.
T1 = Hours to produce the first unit. b = (Log of the learning rate/Log 2) = Slope of the learning curve. If the learning rate for a given operation is 80%, and the first produced unit took 1.000 hours, the hours needed for the thirteenth unit can be calculated as follows: TN = T1(Nb).
If the process requires human labor and machine labor in equal measure, the learning percent is about 85%. If 75% of the proces is done by machine and only 25% by hand, the learning percent is around 90%. The closer the learning percent is to 100%, the more negligible the effects of experience. Processes that involve more of a human assembly component have lower learning curve percents.