In an Excel spreadsheet, add the stocks down below and determine their expected return (ROI) from finance.yahoo.com. Presume you would average the return.

Stocks: Apple Inc, American Airlines, Dunkin Donuts, and Ulta Beuty.

After calculating ROI, figure out what amount should be saved monthly to meet savings of a retiremnet plan. You will need to do a TVM financial calculation for this. Assume you need $100K for retirement and that you will invest 20% equally in these 5 stocks. The period (time) is 324 months since you're making monthly payments.

Please do proper calculations regarding ROI, this piece of information plays a huge role in my final assignment. Thanks!