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How do I set a Reverb price drop or offer without going below my margin floor?

Recompute a Reverb price drop or offer with seller-supplied selling, processing, shipping, and cost terms, then find the first price that preserves your contribution floor.

Define contribution for this listing

Record the current price, landed product cost, other variable costs, any shipping the seller will absorb, and the contribution dollars you need after those deductions. Copy the current selling-fee and payment-processing percent and flat terms from your authorized source. Include each component's separate fee-basis additions instead of assuming both fees use the same amount. This creates an auditable floor before a price drop or buyer offer changes the headline price.

Calculate the planned price exactly once

If the plan is a percentage drop, multiply the current price by one minus that percent and round to the nearest cent. If it is a fixed offer, use the supplied cent amount. Never apply both. Recompute the selling fee and processing fee independently from the planned price plus only their own supplied basis additions, rounding each fee to cents. The sequence matters because a flat processing amount can consume a larger share of a lower-priced offer.

Keep shipping and product economics visible

Subtract seller-paid shipping, product cost, and other variable cost after the fee components. Buyer-paid shipping is not automatically seller revenue, and seller-paid shipping is not automatically inside either fee basis, so use the amounts from the specific listing and fee source. Compare the resulting contribution with the chosen floor and report the positive headroom or positive shortfall. Do not net a profitable listing against an unsafe one.

Find the minimum viable price in cents

Starting below the current price, evaluate candidate cents with the same independent fee rounding until contribution first meets the floor. Use that first passing cent as the lower arithmetic boundary, then convert it into a maximum discount rounded down to four decimals. A simple formula that divides by one minus a blended fee rate can miss flat fees and cent-rounding changes. The boundary proves only the supplied math, not buyer interest or marketplace acceptance.

Treat the queue as a preflight, not an instruction

Review non-positive contribution, no-current-headroom, and below-floor rows before the within-floor context. Confirm the live Reverb price, shipping setting, fee terms, item cost, and floor immediately before any authorized human price change or offer. Preserve the calculation next to the seller-owned listing alias for later review. Friday reads no Reverb account, predicts no demand or acceptance, sends no offer, changes no price, publishes no listing, and changes nothing.

Tools that help with this

Prices below are exact x402 per-call prices. Human card checkout uses fixed $3, $9, and $29 bundles; follow a tool page to see its applicable bundle.

Every paid output is a draft for your review before you publish, appeal, or activate anything. Friday does not access your seller account.

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