Price Variance. Definition: Price variance is the actual unit cost of a purchased item, minus its standard cost, multiplied by the quantity of actual units purchased. The price variance formula is: (Actual cost incurred-standard cost) x Actual quantity of units purchased. = Price variance. If the actual cost incurred is lower than the standard cost, this is considered a favorable price variance.
Calcium occurs in water naturally. Seawater contains approximately 400 ppm calcium. One of the main reasons for the abundance of calcium in water is its natural occurrence in the earth's crust.
How to Naturally Dissolve Calcium in Leg Arteries. Calcium deposits in the legs can be treated with medications and herbal remedies. Calcium can build up in the inner walls of the arteries along with deposits of fats and cholesterol, causing atherosclerosis, or hardening of the arteries, in the legs and other areas. This plaque deposit can build up over several years, leading to rigid, hardened arteries that are unable to expand properly.