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.
Burning feet can come from an allergic reaction to shoe material or socks. Sometimes it is a fungal infection such as athlete's foot. Allergic reactions from food, chemicals or medications can result in itching and burning sensation. Skin conditions like eczema or psoriasis can also result in an itching and burning. Gout can cause a burning sensation on the side of the foot. Often burning feet is a common symptom of what is called neuropathy. You can find a list of reasons that a person can get burning feet, such as alcohol use, diabetes, nerve compression. etc. etc. but all the reasons have this one actual cause, neuropathy.