Amazon FBA

Most sellers calculate FBA profitability wrong. The math itself isn't the problem. The problem is an incomplete list of fees. Sellers account for fulfillment and referral fees, estimate their COGS, and arrive at a margin that looks workable. Then they launch, run the numbers three months in, and find that inbound placement fees, realistic storage costs, and advertising spend have compressed that margin past the point of viability. At that stage, fixing the problem is expensiv