Going over a figure or a piece of merchandise, it is easy to lose track of which checks you already made. Write each thing you want to look at on its own line and mark it Y or N, and this page lays out how many are done, how many are left and exactly which ones remain.
The arithmetic counts the lines marked Y and divides by the number of lines. The rounding step for the progress figure can be set to 1%, 5% or 10%, and the result states which step was used. A comma is the separator where one exists and spaces otherwise, with the last value read as the mark; a line with no mark is reported by its line number. Current as of October 2026.
Nothing is judged genuine and no items are supplied for you to check. Authentication criteria are not published by makers or distributors, no official standard exists, and supplying the items would mean inventing those criteria ourselves. Market value is not covered either. Write your list from maker guidance and your own judgment.
Frequently Asked Questions
No. Authentication criteria are not published by makers or distributors and no official standard exists. This page only counts how many of your own listed items you have checked.
No. Supplying the items would mean inventing authentication criteria. The sample lines show the input format only; write your own list from maker guidance and your own judgment.
No. The comma separates the item name from the Y or N mark, so keep it out of the name. On a line without a comma, spaces are treated as the separator and the last value is read as the mark.