The Nature of Dusty Star-Forming Galaxies (Springer Theses)

by William Cowley

In stock

Good price

$71.78 is 6% below the $77.00 it normally sells for, and the lowest we've seen in 138 days.

Now: $71.78
Normally: $77.00
Lowest in 138 days: $71.78(Nov 11)
Highest: $99.00

Evidence: Strong138 days tracked58 price changeschecked 1h ago

Where today's price sits

Now $71.78Normal $77.00List $99.00

View on amazon.com

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

The listing's crossed-out price

Smaller than shown

The listing shows

crossed out: ~~List $99.00 −27%~~

Against its normal price

−6% vs $77.00

The listing shows −27%. Against its normal price it's −6%.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Listing checked 6h ago

Price history

Tracked since Jun 25 · 138 days · 58 price changes

Price
Not checked for 3+ days
Normal $77.00
5% or more below normal

How often does it drop below normal?

In the 138 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 1 day. It's below normal right now.

A count of what happened, not a prediction.

Other ways to buy

New from
$71.78
Amazon.com Services LLCFulfilled by Amazon · Seller rating 100%

Offers as of 6h ago

More real deals in eBooks

See all

Get this as JSONThe same verdict and prices, from the TrackPin API.

GET/api/v1/product/B07653H5SQ

Request

curl https://trackpin.co/api/v1/product/B07653H5SQ \
  -H "x-api-key: $TRACKPIN_API_KEY"

const res = await fetch("https://trackpin.co/api/v1/product/B07653H5SQ", {
  headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();

console.log(product.verdict.label, product.price.reference_cents);

import os, requests

r = requests.get(
    "https://trackpin.co/api/v1/product/B07653H5SQ",
    headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()

print(product["verdict"]["label"], product["price"]["reference_cents"])

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key

Live responseAs of 19:10 UTC

{
  "asin": "B07653H5SQ",
  "title": "The Nature of Dusty Star-Forming Galaxies (Springer Theses)",
  "image": "https://m.media-amazon.com/images/I/61J8XKn9wnL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "eBooks",
  "category_label": "eBooks",
  "in_stock": true,
  "price": {
    "current_cents": 7178,
    "reference_cents": 7700,
    "discount_pct": 6.78,
    "is_deal": true,
    "observed_at": 1794419519734,
    "changed_at": 1794401528102,
    "checked_at": 1794419519734,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 6.78,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $71.78 is 6% below the $77.00 it normally sells for, and the lowest we've seen in 138 days."
  },
  "listing_claim": {
    "label": "List:",
    "listing_reference_cents": 9900,
    "claimed_pct": 27,
    "real_pct": 6.78,
    "class": "smaller",
    "observed_at": 1794402416996
  },
  "stats": {
    "min_cents": 7178,
    "max_cents": 9900,
    "avg_cents": 8638,
    "history_days": 138,
    "price_levels": 210,
    "price_changes": 58,
    "distinct_prices": 15,
    "lowest_at": 1794401528102
  },
  "history": [
    {
      "price_cents": 9900,
      "from": 1794053741724,
      "to": 1794135889530
    },
    {
      "price_cents": 9160,
      "from": 1794139836766,
      "to": 1794215768691
    },
    {
      "price_cents": 9900,
      "from": 1794226604541,
      "to": 1794301481896
    },
    {
      "price_cents": 7700,
      "from": 1794313417989,
      "to": 1794394569293
    },
    {
      "price_cents": 7178,
      "from": 1794401528102,
      "to": 1794419519734
    }
  ],
  "last_seen": 1794419519734
}
// … 205 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.