#### Explanation:

We shall consider the original price as $x$; hence the discount can be considered as $\left(x - 522\right)$. We can write the equation:

$x \times \frac{28}{100} = x - 522$

$x \times \frac{7 \cancel{28}}{25 \cancel{100}} = x - 522$

Multiply both sides by $25$.

$7 x = 25 \left(x - 522\right)$

Open the brackets.

$7 x = 25 x - 13050$

Add $13050$ to each side.

$13050 + 7 x = 25 x$

Subtract $7 x$ from each side.

$13050 = 18 x$

Divide both sides by $18$.

$725 = x$ or $x = 725$