Applies to any consumer who sells a product or service to a business on the internet; an example is priceline where consumers name the price they are willing to pay or social media where consumers benefit the company such as in food blogging where consumer bloggers may be paid by a company to include their products in recipes

You wish to retire in 13 years, at which time you want to have accumulated enough money to receive an annual annuity of $23,000 for 18 years after retirement. during the period before retirement you can earn 9 percent annually, while after retirement you can earn 11 percent on your money. what annual contributions to the retirement fund will allow you to receive the $23,000 annuity? use appendix c and appendix d for an approximate answer, but calculate your final answer using the formula and financial calculator methods.