please provide an explanation as to how the answer is gotten

5. Kaper Interior serves an up-scale client and produces 10,000 chaneliers annually. The unit variable industrial cost is 20 and the annual fixed industrial cost is 8,000 Euros. As for the variable administrative and selling expenses, they amount to 10% of the variable industrial cost. Kaper also incur some fixed administrative and selling expenses amounting to 3,000 Euros annually. And the target Profit is 30,000 Euros. Using the method of variable costs and variable administrative and selling expenses, what price Karper management should charge