In order for the value of money to decrease that would mean that it is more available to the public, so raise taxes on goods and services. Though there isn't much to do as inflation is natural over the years, not on a quick amount of time. So it's a very problematic situation. But usually when less money is available prices go down as well, as if the prices are too high, the said business would end up failing, resulting in either lowering prices or making some sort of discount.
