Your spreadsheet is missing costs, lagging behind reality, and can't account for ad spend per product. Here's what real profit tracking looks like.
Every Amazon seller has a spreadsheet. It has columns for COGS, selling price, maybe FBA fees, and a formula at the bottom that says "profit." The problem isn't that the spreadsheet is wrong — it's that it's always incomplete and always out of date.
What your spreadsheet is missing
A typical seller's profit spreadsheet accounts for COGS and selling price. A good one adds FBA fees and referral fees. But almost none of them include:
- Ad spend per product — not total ad spend, but how much you spent on ads for THIS specific product. Most sellers can't answer this question without digging through campaign reports.
- Returns per product — Amazon takes back the referral fee credit and charges a return processing fee. On some products, returns eat 5-15% of revenue.
- Promotional discounts — coupons, Lightning Deals, and Subscribe & Save discounts all reduce revenue per unit but don't show up in a static spreadsheet.
- Storage fees — monthly and long-term storage fees that vary by season and by product size.
Miss any one of these and your "profit" number is fiction. Miss two or three and you could be losing money on products you think are profitable.
The real problem: spreadsheets don't update themselves
Even if your spreadsheet has every cost category, it's a snapshot from whenever you last updated it. FBA fees change. Your COGS change when you negotiate with suppliers or when shipping costs shift. Ad spend fluctuates daily. Returns happen unpredictably. A spreadsheet that was accurate on January 1st is wrong by January 15th.
The sellers who rely on spreadsheets typically update them monthly — meaning they're making daily decisions (which products to advertise, how much to bid, when to reorder) based on data that's 2-4 weeks old. In a marketplace as dynamic as Amazon, that lag is expensive.
What real profit tracking looks like
Real profit tracking pulls data from Amazon automatically — sales, fees, ad spend, returns — combines it with the COGS you enter once, and shows you actual profit per product, per day, updated as the data flows in. You don't maintain it. You read it.
The difference between a spreadsheet and a live profit dashboard is the same as the difference between a paper map and GPS. Both show you where you are. Only one updates when the road changes.
RedHen Labs syncs your Amazon data daily — orders, FBA fees, referral fees, ad spend per product, returns — and combines it with your COGS to show real profit per product. Enter your costs once. See your margins every day. Try it free for 14 days.