f is formatted output. The format specifier is a parameter of the printf function. The parameters of printf can also vary in use hence printf is variadic: printf( %3.2f\n, someNumber ); //prints a float 3 digits wide and 2 decimal places in precision.
As a result, fixed costs are sometimes called period costs. Some fixed costs are incurred at the discretion of a company's management, such as advertising and promotional expense, while others are not. It is important to remember that all non-discretionary fixed costs will be incurred even if production or sales volume falls to zero.
What I found commonly is that the price for advertisement through the. billboard varies from place to place. If you wanted to buy billboard advertising in Atlanta, Georgia for a year, the annual cost would be the (number of months) times (the minimum number of billboards) times (the cost per billboard). 12 x 28 x $2,500 = $840,000. Same calculations for other places also but the price may fluctuate little bit.