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\begin{document}
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\begin{tabular}{>{\raggedright}p{0.05\columnwidth}>{\raggedright}p{0.2\columnwidth}>{\raggedright}p{0.2\textwidth}>{\raggedright}p{0.2\textwidth}>{\raggedright}p{0.2\columnwidth}}
\toprule 
 &  & \multicolumn{2}{l}{Final Allocation } & \\
\cmidrule{3-4} 
 &  & Lemonade Rich  & Crisps Rich  & Total \\
\midrule 
\multicolumn{2}{l}{Endowment} &  &  & \\
 & Lemonade Rich  & \multicolumn{1}{r}{73} & \multicolumn{1}{r}{37} & \multicolumn{1}{r}{110}\\
 & Crisps Rich  & \multicolumn{1}{r}{40} & \multicolumn{1}{r}{60} & \multicolumn{1}{r}{100}\\
\multicolumn{2}{l}{Total} & \multicolumn{1}{r}{113} & \multicolumn{1}{r}{97} & \multicolumn{1}{r}{210}\\
\bottomrule
\end{tabular}
\end{document}