Now, what if we only want to see the overall sales for each strategy and then compare them with each other? We know that some products performed better or worse than others in each strategy, but which strategy resulted in the greatest total sales overall, with no regard to individual product performance? With this example, we can quickly analyze all product-level differences, and that is what we use such bar charts for. We also see that the biggest sales within Strategy 1 are attributable to Product C, whereas Product D finished last, and Products A and B are almost identical. We can clearly see now that Product D was most successful in Strategy 4 and the least successful in Strategy 5. With that said, let’s look into this example. Of course, when these are the questions being asked, we need to compare values within every single series (sales of a certain product across all strategies) and within every single category (sales of each product within a certain strategy).
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