A new car has a sticker price of $23,750 while the invoice price paid on it was 22,950. What is the percentage markup ?

so the price was bought at 22,950, but the dealer is jacking it up to 23,750, the difference is 23,750 - 22,950, or 800 bucks.

now, if we take 22950 to be the 100%, what is 800 off of it in percentage?

[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 22950&100\\ 800&p \end{array}\implies \cfrac{22950}{800}=\cfrac{100}{p}\implies p=\cfrac{800\cdot 100}{22950}[/tex]