Most GPU Upgrades Aren't Worth It, I Built a Calculator to Prove It
Single-page calculator for GPU upgrades when Tom's Hardware already has comparison tools.

Reverse-pricing calculator fixes the margin leak problem for marketplace sellers.
Online sellers (Amazon, Etsy, eBay, Shopify)
Sellics · Profit Calc · Amazon's built-in profit calculator
I built ProfitPilot after noticing many online sellers price products using incomplete marketplace calculators or spreadsheets.
Most tools show platform fees but ignore advertising costs, returns, taxes, and target profit planning — which means sellers often discover real profit only after listing.
ProfitPilot focuses on pre-listing decisions: • calculate true profit and margin • reverse pricing from target profit • test multiple pricing scenarios quickly
It’s intentionally simple and platform-independent.
Would really appreciate feedback — especially from anyone selling online or working in ecommerce tooling.
Single-page calculator for GPU upgrades when Tom's Hardware already has comparison tools.
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Yet another commodity price tracker when Bloomberg and Google Finance exist.
Reverse fee calculation and support for tiered fee structures (including PeoplePerHour returning-client/lifetime thresholds) are practical touches you actually use when pricing gigs. It runs entirely in-browser with no data collection, which is a clear privacy win; the downside is the space is crowded and the extension needs ongoing updates as platforms change fees (withdrawal fees are explicitly missing).