2. The price of the product is 2019 kuna. The price of the product was increased by $10 \%$, and then decreased by $30 \%$. What is the price after these two changes? Is the final price higher or lower than the initial price, and by how many percent?
First method:

Let $c$ be the price of the product before both changes.

After a $10\%$ increase, the price of the product will be $c_{1}=110\% c, \quad 1$ POINT

and after a $30\%$ decrease, the price will be $c_{2}=70\% c_{1}$. 1 POINT

The price after both changes will be $c_{2}=0.7 \cdot 1.1 \cdot c=0.77 \cdot c=77\% c. \quad 1$ POINT

Thus, the price after both changes will be lower compared to the initial price, and by $23\%$

(100\%-77\%). 2 POINTS

The price after both changes will be $0.77 \cdot 2019=1554.63 \mathrm{kn}$ or $1554 \mathrm{kn} \mathrm{and} 63 \mathrm{lp}$ 1 POINT

TOTAL 6 POINTS

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