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Year 8 maths · F.21 · Sales tax, tips and discounts

Find the cost before a markup

The total is more than 100% of the starting amount. Divide the total by that percent, then multiply by 100.

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  1. A shop sells a tablet case for $33.00 after a 10% markup. What did the shop pay for it?

    Answer: $30.00

  2. A shop sells a lamp for $114.00 after a 50% markup. What did the shop pay for it?

    Answer: $76.00

  3. A shop sells a jacket for $105.00 after a 50% markup. What did the shop pay for it?

    Answer: $70.00

Tip: The total is more than 100% of the starting amount. Divide the total by that percent, then multiply by 100.

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