Please respond to the following discussion topic. Your initial post should be a minimum of 150 words in length. Then, make at least two thoughtful responses to your fellow students posts. Project your Social Security benefits at the organizations website. Many retirement plans suggest that you should create a lump sum of cash to generate enough interest income equal to about 80% of your current income. Calculate how much money you would have to save each month from now until retirement in order to achieve a lump sum large enough to yield interest income equal to 80% of your current income. How much would you need to save each month? Lets discuss. If you would like some help with the time value of money calculations, Excel can be a very handy tool. The site below provides instructions on how to do time value of money calculations in excel: