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.
Woman having aching leg Leg Pain (Aches) Causes. Causes of leg aches can be classified into the following: Traumatic; Non-Traumatic; Traumatic. Injuries, falls, and twisted muscles and bones are the most common cause of leg ache. This is what we call traumatic cause.