This is the problem from the book:

a) was easy; it's just to take $\displaystyle ~\sqrt[12]{1.04}\approx 1.0033~ $, which gives the monthly interest rate of 0.33%

A winner in a lottery can receive 50.000kr(swedish currency) every month for 25 years. The winner wants to know what the prise money is worth today.

a) What monthly interest rate is equivalent of a yearly interest rate of 4%?

b) What is thenow-valuefor the whole prise if we count with a yearly interest rate of 4%?

b) on the other hand was difficult. I did this calculation $\displaystyle ~\frac{50000(\sqrt[12]{1.04}^{300}-1)}{\sqrt[12]{1.04}-1}\approx 25442406~ $ to get the now-value.

The correct answer however, acording to the aswers section, is that the now-value is approximately 9.600.000 kr.

What is a now-value? I must obviously have a gross misunderstanding of the word.