The commercial starting point
Read product demand and availability in the same commercial frame
A top-line sales change can hide very different product stories. A leading variation may have lost availability while weaker items remain overstocked; an advertising increase may support a product whose replenishment window cannot sustain it. I review the product range at the level where those decisions actually happen, not only at the account total.
For a Canadian team selling on Amazon.com, reporting needs a clear US marketplace boundary. We identify which figures are in USD, how approved product costs are represented and who owns the source stock records. If the team reports commercially in another currency, the conversion method belongs in the agreed model. This prevents a currency or scope difference from being mistaken for a change in product performance.