If a company produces phones and earns $32 million in sales but pays $24 million for the items sold, then the company's gross profit margin would be ($32M - $24M) / $32M = 25 percent.
Burning legs can result from a number of causes, including damage to nerves in the legs from exposure to extreme heat or cold or to toxic substances. Burning legs might also result from a circulation problem that impairs blood flow to the legs, a leg injury, or intense exercise.
Neuropathy: Burning sensation in the legs could be due to peripheral neuropathy or deficiencies of potassium,calcium or magnesium or vitamin b12, These don't usually cause burning in the abdominal region,however. If symptoms persist,see your Physician who will examine you and order the appropriate tests. ...Read more.