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.
The excess blood in the failed veins then makes the veins swell, and the swollen veins can leak blood and fluid into the surrounding tissue of the leg. This blood and fluid that has leaked into the surrounding tissue of the leg often causes skin discoloration, itching, and inflammation of the leg tissue. This inflammation and leakage of the blood and fluid into the leg tissue can cause the leg skin to feel a hot or burning sensation. The vein problem âVenous Refluxâ that often causes the veins to fail and causes the hot and burning sensation to be experienced is now easily treated with modern vein procedures.