Calcium and Dairy. Foods classified by the USDA as dairy products supply calcium to the diet. Calcium is stored in your bones, which makes them dense. Too little calcium in your diet can increase your risk of developing low bone density and fractures.
For example, say that your traditional IRA has a cost basis of $30,000 and is worth $100,000 when you take a $10,000 withdrawal. That means 30 percent of the withdrawal comes out of your cost basis and is tax-free; 70 percent comes from the remainder of the account and is taxable.
The average cost basis method adds up the cost basis for the entire position in a specific mutual fund and divides it by the total number of fund shares owned to arrive at an average cost per share. The average cost is then compared with the price at which the fund shares were sold to determine gains or losses. The average cost basis is one of three methods that the IRS allows investors to use to arrive at the cost of their mutual fund holdings acquired before Jan. 1, 2012.