Find the shelf price
Every product we read from Philippine stores, with its price history. The line beside each price is its recent steps; a green dot means it just went down.
Biggest drops this week
Priced down in the last seven days and at least 10% under the product's own 30-day median. A one-day flicker does not count.
Nothing qualifies in books stores yet. A product needs a few weeks of history before its median means something.
Start from a staple
The fifteen the basket index prices every day.
