Is there a code in Latex to make a Workpackages table like the one shown above?

Question

Is there a Code to make a table like this in latex?

I am currently using the following code, I would like to set first row as color grey

\usepackage{colortbl}

\documentclass[a4paper,11pt]{article}
\begin{table}[h]
    \centering
    \begin{tabular}{|>{\columncolor[gray]{0.8}}c|c|c|c|c|c|c|c|}
        \hline
        128&64&32&16&8&4&2&1\\\hline
        1&0&1&1&0&1&0&1\\\hline
        1&0&1&1&0&1&0&1\\\hline
    \end{tabular}
\end{table}
\end{document}

Answer 1

As starting point:

In above table are used the following packages: booktabs (for \addlinespace between the first and the second table row), makecell˙(for columns' headers), threeparttable(for notes in table) andsiunitx` for formating numbers in the last four tables' columns.

\documentclass[a4paper,11pt]{article}
\usepackage[table]{xcolor}
\usepackage{siunitx}
\usepackage{booktabs, makecell, threeparttable}    

\begin{document}
\begin{table}[ht]
    \begin{threeparttable}
    \begin{tabular}{|w{l}{4em}|l| 
                    S[table-format=2.0]|
                    S[table-format=3.2, table-column-width=4em]|
               *{2}{S[table-format=2.0, table-column-width=4em]|}
                   }  
    \rowcolor{black}
    \multicolumn{6}{c}{\textcolor{white}{some text}}        \\
    \addlinespace
    \hline
    \rowcolor{gray!80}
\makecell[l]{WP\\ Number\tnote{53}}
    &   WP Title        
        &   {\makecell{Lead\\ benefeciary\\ number\tnote{55}}}
            &   {\makecell{Person-\\ moths\tnote{56}}}
                &   {\makecell{Start\\ month\tnote{57}}}
                    &   {\makecell{End\\ month\tnote{58}}}  \\
    \hline
WP 1& package 1 title
        &  7 & 171.00 &  1 & 36     \\
    \hline
WP 2& package 2 title
        &  6 & 192.00 &  1 & 36     \\
    \hline
WP 3& package 3 title
        & 26 & 102.00 &  2 & 36     \\
    \hline
WP 4& package 4 title
        & 13 &  73.00 &  1 & 36     \\
    \hline
WP 5& package 5 title
        & 21 &  72.00 &  1 & 36     \\
    \hline
WP 6& package 6 title
        &  1 &  48.00 &  1 & 36     \\
    \hline
\multicolumn{2}{r|}{}
    & {\cellcolor{gray!80} Total}
             & \cellcolor{gray!80} 658.00
                      & \multicolumn{2}{l}{}   \\
    \cline{3-4}
    \end{tabular}
\begin{tablenotes}[flushleft]\footnotesize
\item[53]   some explanation
\item[55]   some explanation
\item[56]   some explanation
\item[57]   some explanation
\item[58]   some explanation
\end{tablenotes}
    \end{threeparttable}
\end{table}
\end{document}

Real text in the second column is left to OP to write it.

Addendum: As exercise, this table can be written by use of the tabularray package. This new table packages, here is used version L, has a bit different syntax which enables separating table formatting from its content. Its details are described in the package's documentation (which is part of its installation or can be find by help of the Google):

\documentclass[a4paper,11pt]{article}
\usepackage[table]{xcolor}

\usepackage{tabularray}  
\UseTblrLibrary{siunitx}

\begin{document}

\vspace*{21\baselineskip}
\begin{table}[ht]
    \begin{tblr}{hline{1-9},
                 hline{2} = {white, 3pt},
                 vline{1,2,6,7} = {1-8}{solid},
                 vline{3-5} = {1-9}{solid},
                 colspec = {X[0.9,m] l
                            X[m,c,si]
                            X[m,c,si]
                            X[m,c,si]
                            X[m,c,si]},
                row{1} = {bg=black,fg=white},
                row{2} = {bg=gray!80, font=\small\linespread{0.84}\selectfont},
                }
    \multicolumn{6}{c}{\textcolor{white}{some text}}    \\
{WP\\ Number\footnotemark[53]}
    &   WP Title
        &   {{{Lead\\ benefeciary\\ number\footnotemark[55]}}}
            &   {{{Person-\\ moths\footnotemark[56]}}}
                &   {{{Start\\ month\footnotemark[57]}}}
                    &   {{{End\\ month\footnotemark[58]}}}  \\
WP 1& package 1 title
        &  7 & 171.00 &  1 & 36     \\
WP 2& package 2 title
        &  6 & 192.00 &  1 & 36     \\
WP 3& package 3 title
        & 26 & 102.00 &  2 & 36     \\
WP 4& package 4 title
        & 13 &  73.00 &  1 & 36     \\
WP 5& package 5 title
        & 21 &  72.00 &  1 & 36     \\
WP 6& package 6 title
        &  1 &  48.00 &  1 & 36     \\
    &   & \SetCell{bg=gray!80} {{{Total:}}}
             & \SetCell{bg=gray!80} 658.00
                      &    &        \\
    \cline{3-4}
    \end{tblr}
\end{table}
\footnotetext[53]{\ some explanation}
\footnotetext[55]{\ some explanation}
\footnotetext[56]{\ some explanation}
\footnotetext[57]{\ some explanation}
\footnotetext[58]{\ some explanation}
\end{document}

Result is similar as before: