The question here is: At what cost of capital interest rate is the investment profitable?

\mathrm{NNV} = -1,450,000 + 400,000 \times \mathrm{CPV}[i\%, 5 \text{ year}] + 50,000 \times \mathrm{PV}[i\%, 5 \text{ year}] = 0

Try using the interest tables B & C:

\begin{array}{l} i = 14\% \rightarrow \mathrm{NPV} = -\text{SEK 50,790} \\ i = 13\% \rightarrow \mathrm{NPV} = -1,450,000 + 400,000 \times 3.5172 + 50,000 \times 0.5428 = -\text{SEK 15,980} \\ i = 12\% \rightarrow \mathrm{NPV} = -1,450,000 + 400,000 \times 3.6048 + 50,000 \times 0.5674 = \text{SEK 20,290} \end{array}

If the cost of capital interest rate is decreased to approximately 12% (i.e. between 12% and 13%), the investment will be profitable.