The selling price of a television is＄$$4800$$ and its profit percentage is $$20\textbackslash\%$$. If the cost of the television is not changed, how much should it be sold for if the profit percentage has to be $$75\textbackslash\%$$? 
Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts
$$\frac{4800}{\left( 1+20\textbackslash\% \right)}=4000$$ dollars,  $$4000\times \left( 1+75\textbackslash\% \right)=7000$$ dollars. 