Dividend Policy Analysis. Since raising its dividend in December 2014, AT&T had a dividend yield of 5.78% on Sept. 18, 2015, which is calculated by dividing its annual dividend by its closing share price.
Although quarters were never made entirely of silver, the U.S. Mint completely stopped using silver in quarters in 1965, producing the last actual silver quarters in 1964. Prior to 1965, the Mint made quarters out of 10 percent copper and 90 percent silver.
Early on, the silver coins had different percentages of silver than what we know of today. The half dime, which as the 5 cent coin of that period, contained 89.24% silver. The first dimes, quarters, half dollars and dollar coins of the time also contained 89.24% silver. This seemingly odd percentage of silver continued for these coins until 1837 for dimes, 1838 for quarters, 1836 for half dollars and 1837 for silver dollar coins. The change was mandated by The Law of January 18, 1837 to 412 1/2 grains in weight and .900 fineness.