Enter time as an assumption
Use days to sale for each price scenario and label the source of that expectation in your notes. The browser does not retrieve sell-through data or predict demand. A clean table is still only a model of what you entered.
Notice the cash that stays tied up
Two flips with the same expected profit can behave differently when one sells promptly and the other occupies your cash and storage for months. Make the holding-time assumption visible.
Put it into practice
Interpret the ratio carefully
Profit divided by assumed days is a comparison aid. It does not mean the item pays you each day or that you can repeat the trade without supply constraints. A negative result remains a loss even if the assumed selling period is short.
Add the operational context
Consider the space, packing effort and risk of returns in your own decision. These can matter more than a small difference in arithmetic. If the time assumption is unsupported, research it rather than treating the largest displayed ratio as a recommendation.
A worked example
A slow, bulky item with 20 units of profit may be less convenient than a compact item with 15. The tool does not value your space; it helps you see the financial assumptions before making that judgment.
Resale price and time sensitivity comparison
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.
What to keep in mind
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.
Take the next step
with Sift.
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.