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This value only takes into account the size of the entities saved , not the size of the associated headers , and not the physical size on the disc . It is indeed a foolish waste of time to tear cloth into bits for the sake of arranging it anew in fantastic figures ; but a large family may be kept out of idleness , and a few shillings saved , by thus using scraps of gowns , curtains , & c. How a company structures its 401 ( k ) can determine how aggressively and successfully employees save , no matter what their income . For example , number of lives saved , increased manpower requirements , changes in emission levels or number of new bits of equipment needed .