Micron Technology, Inc., is in the semiconductor industry. This industry requires extensive capital investments in fabrication facilities in order to maintain technological competitiveness. E. I. De Nemours DuPont & Co. is one of the leading chemical companies in the world. DuPont requires significant investment in chemical processing facilities. Chemical products have longer lives than do semiconductor products. The following selected fixed asset information is provided from recent financial statements (all numbers in millions):

a. Determine the book value of the plant and equipment for each company.
b. Estimate the total useful life of the plant and equipment, assuming straight-line depreciation and no residual value.
c. Estimate the percent of accumulated depreciation to the total initial cost of property, plant, and equipment for each company. Round to one decimal place.
d. Interpret the differences between Micron and DuPont from your calculations in (b) and(c).

Plant and Equipment Initial Cost 5 8,998 22,661 Accumulated Depreciation 4,836 14,257 Depreciation Expense $1,158 1,355 Micron Technology DuPont