A way to gauge how the stock market does overall is to look at the Standard & Poor's 500 (S&P 500) index, which gives a solid indication of 500 stocks. Using an online calculator to check past performance, such as the one provided by Don’t Quit Your Day Job (DQYDJ) found at
dqydj.com/sp-500-return-calculator/, will reveal some impressive gains over time. Looking at the past 40 years since some Millennials can relate to the recent 40
th anniversary of a popular Sci-Fi film that came out in theaters in May 1977, a long time ago before they were born could give them reference to a time frame. From May 1977 to May 2017, the S&P 500 price return has been 498.548% (DQYDJ, 2017), which is six times the original investment. Therefore, ten dollars’ worth of movie tickets would be worth $49.86. If someone puts in $10,000, they would have $49,855 during those 40 years.