In this example, the goal is to clean up telephone numbers with inconsistent formatting and then reformat the numbers in the same way. In practice, this means we need to start by removing the extra non-numeric characters, including spaces, dashes, periods, and parentheses. Once these...Read more
The 4% retirement rule suggests you can safely withdraw 4% of your portfolio in year one of retirement, then adjust that amount for inflation each year for 30 years without running out of money. But how does this actually play out year by year? This article builds a complete Excel model to...Read more
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