The most commonly used inventory valuation methods under a perpetual system are: 1  first-in first-out (FIFO) 2  last-in first-out (LIFO) 3  highest in,first out (HIFO) 4  average cost or weighted average cost.
More Information About Eyebrow lump. List of 6 causes of Eyebrow lump. This section shows a full list of all the diseases and conditions listed as a possible cause of Eyebrow lump in our database from various sources. 1  Acne vulgaris. 2  Dermoid cyst. 3  Folliculitis.  Malignant melanoma.
Causes of Abnormal Goosebumps. Each hair follicle has a muscle attached to it known as the arrector pili or erector pili muscle. It is a smooth muscle meaning that it is under involuntary control. Nerves from the sympathetic branch of the autonomic nervous system stimulate these muscles to contract.