An asking price is an invitation, not a completed transaction. Before buying inventory, build more than one scenario from comparables that resemble your actual item.
Use condition, model and included parts to narrow the evidence. A complete boxed item can command a different price from an incomplete one even when their product names match. Keep the reason for each estimate in your notes.
Enter a lower-price scenario that would still be plausible if your first listing receives little interest. Use the same real acquisition, packing and shipping costs across the scenarios so the comparison isolates the changed assumption.
Inspect the profit after fees and the return on your item cost. Neither measure includes your time unless you put a labor amount into the other-cost allowance. The numbers can help you pass on a weak purchase, but they cannot guarantee a sale.
A missing charger means the best-looking comparable may be inappropriate. Use evidence for a similarly incomplete item instead of subtracting an invented small discount from a complete sale.
A resale decision can look attractive at one optimistic price and weak at a lower price or longer holding time. Enter several price-and-time scenarios with your actual costs and fee assumptions to compare the cash outcome side by side.
Selling time is an assumption you provide, not a market forecast. Profit per assumed day is simple division and does not represent a recurring daily income. Return on item cost excludes labor and any cost you did not enter.
Inputs are processed in this page. Nothing is submitted to the app or a business. Download a result to keep it; this page does not automatically save your work.
This page does not fetch sold listings or know your marketplace's current fees. Enter the actual fee basis and rates from your account. Tax, returns and your time are separate costs unless you include them.
Sift's listing focuses on resale research, sell-through and visible buy-or-pass arithmetic. It describes estimating proceeds after platform fees and showing the sales evidence used for an estimate.
View Sift on the App StoreThe current listing requires iOS 26.0 or later. Some features have additional device requirements. Check the listing and purchase screen for current availability and terms.