Also, to facilitate the work of the stomach, you must not simultaneously eat liquid and dense food. For example, after you ate breakfast, tea or juice is better not to drink earlier than 1.5 hours. You must not to combine foods rich in protein (meat, curd, milk) with rich carbohydrates (flour products, potatoes).
The Critical Value. The critical value for our margin of error formula is denoted by zÎ±/2. This is the point z* on the standard normal distribution table of z-scores for which an area of Î±/2 lies above z*. Alternately is is the point on the bell curve for which an area of 1 - Î± lies between -z* and z*.
Managers typically use gross profit to compute gross profit margin, also known as gross margin. This is a ratio showing the efficiency in which the business turns revenue into gross profit. The formula is gross profit divided by revenue for the period. Using the same numbers, you divide $210,000 by $420,000 and get .50. You multiply this by 100 to convert it to a percentage of 50. This is seemingly a strong gross margin, though you have to compare it to industry norms and prior periods to know for sure.