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\begin{document}
\begin{tabular}{lcc}
\hline\hline
Parameter & Negative change & Positive change\\\hline
$f_0(1370)$ mass & $0.3$ & 1.9 \\
$f_0(1370)$ width & $2.3$ &  2.6 \\
$\pi^+\pi^-$ mass dependent efficiency& 2.3 & 2.3\\
$m_0g_1$ & $4.2$ & 3.6\\
$g_2/g_1$ & $0.7$ & 0.7\\
Addition of non-resonant $\pi^+\pi^-$ & $7.3$ & 0\\
MC statistics (efficiency ratio) & $2.3$ & 2.3 \\
${B}_s^0$ $p_T$ distribution & 0.5&0.5\\
${B}_s^0$ mass resolution & 0.5 & 0.5 \\
PID efficiency & $1.0$& 1.0\\
$\phi$ detection &$9.0$ & 9.0\\\hline
Total & 13.1 & 10.8\\
\hline
\end{tabular}
\end{document}
