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\documentclass[border=5mm]{standalone}
\usepackage{sansmath}
\usepackage[svgnames]{xcolor}
\usepackage{pgfplots}

\pgfplotsset{compat=1.17}

\begin{document}
\begin{tikzpicture}
\begin{axis}[
    font={\sffamily\sansmath},
    ybar stacked,
    ymin=0,
    xmin=.5,
    xmax=2.5,
    xtick=data,
    ytick={0,100,...,800},
    xticklabels={End 2003,End 2006},
    axis line style={opacity=0},
    tick style={opacity=0},
    ymajorgrids,
    major grid style={line width=.2pt,draw=gray!50},
    bar width=16mm,
    reverse legend,
    legend style={
        at={(current bounding box.east)},
        xshift=3mm,
        anchor=west,
        cells={anchor=west},
        draw=none
    },
    every axis plot/.append style={fill}
]
    \addplot[blue] coordinates {(1,130) (2,320)};
        \addlegendentry{Flat Carbon Steel}
    \addplot[Aquamarine] coordinates {(1,100) (2,150)};
        \addlegendentry{Purchasing}
    \addplot[Cyan] coordinates {(1,100) (2,150)};
        \addlegendentry{Stainless Steel}
    \addplot[LightGrey] coordinates {(1,100) (2,150)};
        \addlegendentry{Commercial and gereral expenses}
\end{axis}
\end{tikzpicture}
\end{document}

\documentclass[border=5mm]{standalone}
\usepackage[svgnames]{xcolor}
\usepackage{pgfplots}
\pgfplotsset{compat=newest}
\begin{document}
	\begin{tikzpicture}
		\begin{axis}[
				font={\sffamily},
				ybar stacked,
				ymin=0,
				xmin=.5,
				xmax=2.5,
				xtick=data,
				ytick={0,100,...,800},
				xticklabels={End 2003,End 2006},
				axis x line=none,
				axis y line*=left,
				ymajorgrids,
				major grid style={line width=.2pt,draw=gray!50},
				bar width=16mm,
				reverse legend,
				legend style={
				at={(1.05,.5)},anchor=west,
				legend cell align=left,
				draw=none}
				]
				\addplot[blue,fill] coordinates
				{(1,130) (2,320)};\addlegendentry{Flat Carbon Steel}
				\addplot[Aquamarine,fill] coordinates
				{(1,100) (2,150)};\addlegendentry{Purchasing}
				\addplot[Cyan,fill] coordinates
				{(1,100) (2,150)};\addlegendentry{Stainless Steel}
				\addplot[LightGrey,fill] coordinates
				{(1,100) (2,150)};\addlegendentry{Commercial and gereral expenses}
		\end{axis}
	\end{tikzpicture}
\end{document}