This represents the percentage of each dollar of a company's revenue available after accounting for cost of goods sold. 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.
The causes of burning feet are numerous and varied, ranging from simple fatigue to more serious conditions such as a nerve damage or circulatory issues. Therefore, the underlying cause should be diagnosed as soon as possible to avoid long-term damage and morbidity.
Along with painful mouth sores, hand, foot and mouth disease causes fever and a rash on both the hands and the feet. Hand, foot and mouth is due to a virus that lives in the intestines, and it is very contagious, said William Schaffner, an infectious diseases specialist at Vanderbilt University. He noted that late summer and early fall are when enteroviruses -- those related to the intestines -- seem to spread readily.