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qid 529 · business

Question: The selling price of a piano which cost $18,000 is $22,950. Find the percent the selling price is of the cost.

  1. 125%
  2. 127.5%
  3. 150%
  4. 135%
  5. 115%
  6. 130%
  7. 120%
  8. 110%
  9. 122.5%
  10. 140%

Our answer: B. 127.5% Source quote machine-checked (exact quote)

A machine check confirms the quoted words appear at the source. A person has not yet reviewed these. EARN MARKS as a Human Reviewer

How it was answered

Stored formula / worked method, replayed by code

Percentage markup over cost ratio evaluation problem

card: formula · card sha256 f6dfed2f20221d9e…

Current source

Mathematics LibreTexts, Business Math (Olivier), 6.02 Markup: Setting the Regular Price

https://math.libretexts.org/Bookshelves/Applied_Mathematics/Business_Math_(Olivier)/06:_Marketing_Applications_(What_Is_It_Going_to_Cost_Me)/6.02:_Markup-_Setting_the_Regular_Price_(Need_to_Stay_in_Business)

“In other words, you must add 52.9254% of the cost on top of the unit cost to arrive at the regular unit selling price of $39.99.”

Source quote machine-checked (exact quote)

retrieved 2026-09-18T00:09:51.670Z

page text sha256 397d5f914cb6c19e… · content sha256 d803ad2d446204db…

addendum formula_qid529.formula_ADDENDUM_source_rs20260918T000951Z · sha256 ee4c9eda68d41deb… · replaces the version below, addendum sha256 f6962cd77a171819…

Earlier version (superseded)

https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent

Source weak (http_get_200_text_and_question_terms)

retrieved 2026-09-17T00:31:55.795Z

page text sha256 3d76c22d2f8592d9… · content sha256 —

addendum formula_qid529.formula_ADDENDUM_source_relabel_unverified20260917T012453Z · sha256 f6962cd77a171819… · replaces the version below, addendum sha256 3d68d1c9ca488380…

Earlier version (superseded)

https://openstax.org/books/prealgebra-2e/pages/6-1-understand-percent

Source weak (http_get_200_text_and_question_terms)

retrieved 2026-09-17T00:31:55.795Z

page text sha256 3d76c22d2f8592d9… · content sha256 —

addendum formula_qid529.formula_ADDENDUM_source_bf20260917T003155Z · sha256 3d68d1c9ca488380… · replaces the version below, addendum sha256 d2f0f8770258207f…

Earlier version (superseded)

No public source has been found for this card yet (5 places checked internally).

addendum formula_qid529.formula_ADDENDUM_source · sha256 d2f0f8770258207f…

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