Calculate How Long to Make $1m with NPER

March 7, 2012
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James wrote to me and asked: if he buys shares worth $2000 and gets 4% return, how many times does he need to reinvest all of his capital before he makes $1m. Of course James was quick to point out that this scenario doesn’t take into account loosing on any of his trades. Reasonable I [...]

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SUMIFS Formula Referencing Cells Containing Dates

March 1, 2012
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Formulas containing dates and time in Excel can be frustrating if you don’t understand how they work. And even if you do they seem to work differently from one formula to another! A few weeks ago Dave wrote to me as he was having trouble getting a SUMIFS formula to correctly use dates referenced in [...]

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Excel Evaluate Formula Tool

February 22, 2012
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From time to time I get asked the question “what order do formulas evaluate?” The acronym BEDMAS can help you remember. It stands for: Brackets: Any operation(s) contained in brackets will be carried out first followed by any exponents. Exponents: Then any exponents like ^ or SQRT Division or Multiplication (left to right): Excel considers [...]

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VLOOKUP Multiple Criteria

February 15, 2012
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I had an email from Bobcat today asking how to lookup data that is spread across multiple columns. Table 1 has data with the name in just one column:     And Table 2 has the name across 3 columns (D, E and F):     We want to find the Employee number from Table [...]

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Excel Data Validation With Dependent Lists

February 8, 2012
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Using Data Validation to restrict what gets entered in a cell or range of cells is great for standardising your workbooks. But what if you want a second data validation list to only show values that are specific to the first list, like the one below? Well, that’s exactly what Jackie emailed me about the [...]

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What If Analysis Using Excel Scenarios

February 3, 2012
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What if my side eBay bike business sold an extra 10%, what if I increased my price by $15 per bike, what if my costs increased by $5000 per year? What-if analysis is commonly done in Excel by saving different versions of the same workbook, or having a different sheet for each scenario which then [...]

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Excel AVERAGE, AVERAGEIF and AVERAGEIFS

January 27, 2012
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Let’s say that a baby learning to crawl is an analogy for learning the AVERAGE function in Excel. Then learning the AVERAGEIF function is like learning to walk, and learning the AVERAGEIFS function is like learning to run. So, lace up your shoes and get ready to run We’ll be using the table below in [...]

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ROUNDUP and ROUNDDOWN with a Twist

January 18, 2012
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Last week I had a question from Dan that I’d never come across before. Dan has a dress shop with over 2000 dresses and he wanted a formula that would round prices up (in whole dollars) if it ended between 5 and 9, or down if it ended between 0 and 4. For example: $143 [...]

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INDEX MATCH With a Twist

January 12, 2012
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My Toughest Excel Challenge So Far! Recently a member contacted me with a VLOOKUP question, but when I further understood the requirements it became a challenge I’d never come across before. This pushed me to my Excel limits and I have to be honest…I nearly gave up twice! By giving up I mean I was [...]

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Excel INDIRECT Function

December 14, 2011
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Excel’s INDIRECT Function has many applications and perhaps its simplest is to fix a range of cells you want to reference. For example a standard SUM function looks like this: =SUM(B16:B24) If you insert a row within this range the formula dynamically updates and becomes: =SUM(B16:B25) It will dynamically update even if you absolute the [...]

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