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 person with leg pain has discomfort in the structures of the leg. Leg pain may be caused by an injury, irritation, or inflammation of the skin, muscles, bones, or joints in the leg. Sciatica, or a herniated disk in the lumbar spine, may cause pain that shoots down the leg.