Medical conditions such as diabetes can cause foot cramps due to the lack of oxygen supplied to the feet. It is very important that you eat properly and get enough vitamins and minerals. A lack of potassium in your system can cause cramps in your feet and legs. Vitamin D is also important to healthy feet and bones.
An Electrical Project Manager earns an average salary of $77,470 per year. A skill in Contract Negotiation is associated with high pay for this job.
In 2011, sales managers averaged $116,860 a year, according to the Bureau of Labor Statistics. Because higher salaries -- as often seen in the securities and commodities industry -- can skew this figure, median wage is a better reflection of earnings.ales managers at auto dealerships average $109,720 a year, while those working for securities and commodity exchanges earn an average of $187,910 a year.