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.
Some types of leg pain can be traced to problems in your lower spine. Leg pain can also be caused by blood clots, varicose veins or poor circulation. Some common causes of leg pain include: 1  Achilles tendinitis. 2  Achilles tendon rupture. 3  ACL injury. 4  Baker's cyst. 5  Bone cancer. 6  Broken leg. 7  Bursitis.
A burning sensation in the leg can arise from any number of causes, from ill-fitting shoes to diabetes. The most serious cause is peripheral neuropathy-damage to the leg nerves-often from diabetes or alcoholism and less commonly from vitamin deficiencies or lead poisoning. burning sensation in the leg can arise from any number of causes, from ill-fitting shoes to diabetes. The most serious cause is peripheral neuropathy-damage to the leg nerves-often from diabetes or alcoholism and less commonly from vitamin deficiencies or lead poisoning.