The overall value of an option is actually determined by six factors: strike price, current market price of underlying stock, dividend yield, prime interest rate, proximity to expiration date, and the volatility of the stock prices over the course of the option.
If stamp prices go up in the future, new stamps will be issued to cover the rate for items that the post office calls nonmachinable -- meaning the odd size or shape of the envelope means it cannot be sorted on the agency's automated equipment. They will continue to use butterflies as art on the stamps. If, on the other hand, your letter is just heavy, the butterfly stamp is overdoing it. The two-ounce rate is 61 cents. The 64-cent butterfly stamp would work, but it would be overpaying by 3 cents.
USPS raises price of stamps. The U.S. Postal service is now charging Americans a penny more for stamps and postcard mailings. The price of a first-class stamp for domestic mail rose Sunday [1/27/2012] from 45 cents to 46 cents, while postcards cost 33 cents to send..S. Postal Service lifts stamp price by 1 cent. The cash-strapped U.S. Postal Service announced on Tuesday a one-cent increase in the cost of mailing a letter, starting in January. The new prices lift the cost of a first-class stamp to 45 cents starting on January 22, 2012, the first increase in more than two years.