\input{./vars}

\begin{document}
\begin{tabular}{|l|r|r|}
\hline
\textbf{Ingredient} & \multicolumn{1}{l|}{\textbf{Baker's math}} & \multicolumn{1}{l|}{\textbf{Calculated value}} \\ \hline
Flour               & 100\%                                      & 1400*1 = 1400g                                 \\ \hline
Water               & 60\%                                       & 1400*0.6 = 840g                                \\ \hline
Sourdough starter   & 10\%                                       & 1400*0.1 = 140g                                \\ \hline
Salt                & 2\%                                        & 1400*0.02 = 28g                                \\ \hline
\end{tabular}
\end{document}