At 300 K and constant pressure, the following data is obtained for the reaction:
\[
4M(s) + 3O_2(g) \rightarrow 2M_2O_3(s)
\]
Given:
\[
\Delta H^\circ = -1548 \, \text{kJ mol}^{-1}, \quad \Delta S_{\text{sys}} = -550 \, \text{J K}^{-1}\text{mol}^{-1}
\]
What is the value of $\Delta S_{\text{surr}}$ in J K$^{-1}$ mol$^{-1}$?