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 carbonate is a common, naturally occurring calcium salt that is often used as a source of calcium in supplements. Its abundance in nature makes calcium carbonate the least expensive supplemental calcium salt. It is also a major component of some types of stone that are used in architecture and sculpture.
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.