Table 1. Accepted Guidelines for a Normal TCD Study. TCD, transcranial Doppler; MCA, middle cerebral artery; ACA, anterior cerebral artery; PCA, posterior cerebral artery; TICA, terminal internal carotid artery; ICA, internal carotid artery; OA, ophthalmic artery; VR, vertebral artery; BA, basilar artery.
A change in accounting principles, accounting estimates, or the reporting entity. A change in an accounting principle is a change in a method used, such as using a different depreciation method or switching from LIFO to FIFO. An example of an accounting estimate change could be the recalculation of machine's estimated life due to wear and tear.
GAAP affects accounting practices in several ways. One example is depreciation. According to the Tax Foundation, GAAP allows for straight-line and accelerated depreciation, but it requires that the depreciation rate and expected wear and tear of the asset be consistent. Depreciation is the periodic transfer of a fixed assetâs cost to an expense account over its expected useful life.