Upload the address of your blog

That is the missing piece, because I can see today's prices anywhere, it is the before and after that I cannot reconstruct. Two things I want to check before requesting the sample. First, how far back does the history go, and does it start from the day I sign up or can I see anything from before? I appreciate it cannot invent data that was never collected, but I want to know what to expect so I am not disappointed in week one. Second, when a competitor changes a price, can I see whether it was a straight change or whether they ran a short promotion and reverted? Those two look identical if I only check once a week, and they mean completely different things for how I should respond.