The difference between the total actual overhead cost incurred during a period and budgeted total factory overhead cost for the actual quantity of the cost driver used to apply overhead is equal to the: Total overhead spending variance. Total overhead variance. Factory overhead production-volume variance. Total overhead efficiency variance. Total overhead rate variance.

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?