Dealophant tracks the Amazon price and price-per-unit history for Amazon Grocery, Creamy Peanut Butter, 40 Oz, so you can see today's price against its tracked 90-day low and high.
Over the last 90 days, the tracked price per unit for Amazon Grocery, Creamy Peanut Butter, 40 Oz ranged from $0.09 to $0.11 (average $0.10), across 7 captured data points since 2026-07-17. Dealophant records the real cost per unit, not the sticker price, so you can tell whether a "deal" is actually cheap per ounce, sheet, load, or count.
At $0.09 per unit, this is at or within 2% of its tracked 90-day low of $0.09, one of the better points in the last 90 days to buy.
See more products at or near their 90-day low on recently lowest, or compare prices per unit across 50+ categories. Check the current listing on Amazon.