Po drugiej podwyżce
[tex]396 - 120\% \\ x - 100\% \\ \\ x = \frac{396 \times 100}{120} = \frac{39600}{120} = 330zl[/tex]
Po pierwszej podwyżce
[tex]330 - 110\% \\ x - 100\% \\ \\ x = \frac{330 \times 100}{110} = \frac{33000}{110} = 300zl[/tex]
Na początku
[tex]300 - 110\% \\ x - 100\% \\ \\ x = \frac{300 \times 100}{110} = \frac{30000}{110} \approx \boxed{272.7zl}[/tex]
