Donating a unit of whole blood or double red cells (2-units) removes iron from your body. You need iron to make new red blood cells. Low levels of iron can cause anemia or make it worse. All blood donors should learn more about iron. 1  Everyone should eat a healthy diet.2  All blood donors should add foods rich in iron to their diet.ou need iron to make new red blood cells. Low levels of iron can cause anemia or make it worse. All blood donors should learn more about iron. 1  Everyone should eat a healthy diet. 2  All blood donors should add foods rich in iron to their diet.
What is the 'Average-Cost Method'. The average-cost method is a costing method by which the value of a pool of assets or expenses is assumed to be equal to the average cost of the assets or expenses in the pool. BREAKING DOWN 'Average-Cost Method'.
The Relationship between total cost ,total fixed cost,total variable cost are as follows-. 2) Only total variable cost changes to total cost because total fixed cost always remains fixed and never increase and decrease with the change in level of output. 1) Average cost is the sum total of average fixed cost and average variable cost. AC=AFC+AVC. 2) The gap between AC and AVC comes closer and closer but never intersect each other because AC=AFC+AVC and AFC is continuously falling and never rises.