Comparing financial choices

Compare the total cost and the service you receive. A small monthly payment or a bold discount does not tell the whole story.

Lesson 3 of 33 parts Practice Flashcards
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Total cost and Unit price

Objective: Explain total cost and unit price, distinguish their meanings, and apply them to a described case.

Total cost: Total cost includes relevant upfront and ongoing expenses within a defined period. Unit price: Unit price expresses cost per comparable amount. Financial decisions use limited resources to serve priorities over different time horizons. Relevant costs include time, risk, and ongoing obligations as well as the advertised price. Needs depend on circumstances, and choosing one goal can delay another. A sound comparison states what service is being purchased, which alternatives are feasible, and what assumptions could change the conclusion. Application: A comparison adds purchase price, maintenance, and fees. This most directly illustrates total cost. Two packages are compared by cost per ounce. This most directly illustrates unit price.

Formulas

  • Unit price = package cost / package quantity

Worked examples

Try itOriginal teaching scenario: A comparison adds purchase price, maintenance, and fees. Which idea from this section does it most directly illustrate?Show answer

Step 1 — Read the observation: A comparison adds purchase price, maintenance, and fees. Step 2 — Recall the relevant idea: Total cost includes relevant upfront and ongoing expenses within a defined period. Step 3 — Connect the observation to the idea: The scenario is an illustration of total cost. Step 4 — Check the limit: This short scenario illustrates the concept; it does not establish every detail or exclude every other influence in a real situation.

Try itOriginal teaching scenario: Two packages are compared by cost per ounce. Which idea from this section does it most directly illustrate?Show answer

Step 1 — Read the observation: Two packages are compared by cost per ounce. Step 2 — Recall the relevant idea: Unit price expresses cost per comparable amount. Step 3 — Connect the observation to the idea: The scenario is an illustration of unit price. Step 4 — Check the limit: This short scenario illustrates the concept; it does not establish every detail or exclude every other influence in a real situation.

Try itA package costs $16 and contains 4 kilograms. Ignoring tax, what is its unit price?Show answer

Step 1 — Identify the quantities and assumptions in the prompt. Step 2 — Select the relationship: Unit price = package cost / package quantity. Step 3 — Calculate: 16 / 4 = 4. Step 4 — Report with units: 4 dollars per kilogram. This result applies to the stated example, not a forecast or personal recommendation.

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