Hardly any story starts with the end (Benjamin Button doesn't count). Every good book, movie, or TV-series has a plot, which is the backbone of any further development. If the plot is good, the final story will be top quality as well. Your infographic is also a story—one that needs a logical structure and guidelines.
You can start your infographic with some necessary background information (like a prologue in a book or a movie). There's no need to make it very long. Two or three sentences will be enough.
Also, it may be beneficial to structure the content modularly. This strategy naturally separates one section from another, helps organize thinking and perception, and makes it easy to extract single parts to enrich other relevant content you create.