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Idea 21of 23Builds onLess today, or less for each?

Food you throw away is not a saving

Is the big bag the best value if some of it spoils?

Today you'll discover

  • the price per amount you really use
  • how waste changes the best buy
  • why to buy what you need

Think first2 kg for $5.00, or 1 kg for $3.00

Apples: 2 kg for $5.00, or 1 kg for $3.00. Which has the lower price per kg?

Decide first, then press Next. Look at the striped part that goes to waste.

Two bags of apples: 2 kg for $5.00, tag $2.50 / kg, and 1 kg for $3.00, tag $3.00 / kg. Then bars cut into kilograms: the 2 kg bag has one shaded kilogram that is eaten and one striped kilogram that goes to waste. Then $5.00 for the 1 kg used, $5.00 per kg used, against $3.00 per kg used. The small bag is ticked: less for what gets used. The last step asks about milk.

See the whole ideathe big idea and the key word, in one place

The big idea

The best value counts only what you use: food you throw away still costs money.

Price per kilogram eaten

Big bag: $5.00 for 1 kg eaten, so $5.00 per kg. Small bag: $3.00 for 1 kg eaten, so $3.00 per kg.

  1. 2 kg bag$5.00 / kg eaten
  2. 1 kg bag$3.00 / kg eaten

Easy to get wrongThe tag's unit price assumes you use it all. If some goes bad, the real price of what you use goes up.

Key word

waste
food or things you paid for but throw away without using

Ready to use it?

  • Find the price per amount actually used.
  • Choose a pack when some would go to waste.
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