Question

A computer store buys a computer system at a cost $487.20. The selling price was first at $812, but then the store advertised a 30% markdown on the system. find the current sale price?

Answer 1

The current sale price is;

`\text{\$}568.4`

Step-by-step explanation:

Given that the selling price was first at $812.

Then the store advertised a 30% markdown on the system.

the markdown percent can be expressed as;

`\begin{gathered} \text{\%}P=(\Delta S)/(S)*100\text{\%} \\ \text{\%}P=mark\text{ up percent} \\ S=\text{ initial selling price} \\ \Delta S=amount\text{ reduction in selling price} \end{gathered}`

given;

`\begin{gathered} \text{\%}P=30\text{\%} \\ S=\text{ \$812} \\ \text{substituting;} \\ 30\text{\%}=(\Delta S)/(812)*100\text{\%} \\ \Delta S=\frac{812*30\text{\%}}{100\text{\%}} \\ \Delta S=\text{ \$243.6} \end{gathered}`

So, the current selling price will be;

`\begin{gathered} S_N=S-\Delta S \\ S_N=\text{ \$812}-\text{ \$243.6} \\ S_N=\text{ \$}568.4 \end{gathered}`

The current sale price is;

`\text{\$}568.4`