--- title: Unit prices and sales that are not really sales — a lesson of Mova's school · trees and pragmatics description: «Unit prices and sales that are not really sales», a lesson of the money course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: To compare a small pack and a big pack fairly, work out the price for the same amount, called the unit price: four small 250 --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Money](https://md.mova.elamur.ai/free/en/corpora/school/money/) / Unit prices and sales that are not rea… # Unit prices and sales that are not really sales Lesson 13 of the money course of Mova's primary school: 16 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/money/13-unit-prices-and-sales-that-are-not-really-sales/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/0/) — To compare a small pack and a big pack fairly, work out the price for the same amount, called the unit price: four small 250 ml juices at 50p make a litre for £2, but the 1 litre bottle is £1.60, so the big one saves 40p a litre. - [1](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/1/) — Big is not always cheaper: a 100 g pack for £1 is 1p a gram, while a 300 g "giant" pack for £3.30 is 1.1p a gram, so the giant one is dearer per gram; shelf labels often show the unit price in small print. - [2](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/2/) — Big "SALE!!!" signs, "was £600, now £400" and "up to 70% off" can mislead: the trainers may be £60 before and after, and "up to" may mean just two things at 70% off and the rest at 10%. - [3](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/3/) — Watch for shrinkflation, when a bar shrinks from 200 g to 180 g at the same £2, and remember that a picture on a box is an advert, while the ingredients list tells the truth. - [4](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/4/) — The unit price is the price for one gram, one litre, or one item; it lets you compare packs of different sizes fairly. - [5](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/5/) — Bigger packs are often cheaper per unit, but not always. - [6](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/6/) — A sign that says "sale" does not prove the price has fallen; compare the real prices. - [7](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/7/) — Some shops raise a price before a sale so that the discount looks bigger; price-tracking websites show what something really cost before. - [8](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/8/) — Black Friday is a big shopping sale day in late November. - [9](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/9/) — Shrinkflation is when a product gets smaller but the price stays the same. - [10](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/10/) — Multi-packs are not always cheaper: divide the pack price by the number of items to compare. - [11](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/11/) — "Up to 70% off" means the biggest discount is only on some things; most things are cut by less. - [12](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/12/) — Pictures on packets are adverts; the ingredients list shows what is really inside. - [13](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/13/) — Corner shops often charge more than big supermarkets because they buy smaller amounts and stay open late near you; you pay for convenience. - [14](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/14/) — "Limited edition" often means the same product in new packaging, sold to make you buy it now. - [15](https://md.mova.elamur.ai/free/en/corpora/school/money/13-unit-prices-and-sales-that-are-not-really-sales/15/) — "Dearer" is a British word for more expensive. - ← previous: [Offers: 3 for 2, buy one get one free, bundles](https://md.mova.elamur.ai/free/en/corpora/school/money/12-offers-3-for-2-buy-one-get-one-free-bundles/) - next →: [Receipts, refunds, queues and self-checkout](https://md.mova.elamur.ai/free/en/corpora/school/money/14-receipts-refunds-queues-and-self-checkout/) - ↑ back to [Money](https://md.mova.elamur.ai/free/en/corpora/school/money/)