That’s a faster way of filling down to the bottom of the column than dragging down. Now auto-fill the formula down to the bottom: roll the mouse pointer over the dot in the lower-left corner of the cell that shows -16% and double-click the mouse. Tip: The keyboard shortcut for Percent Style is Ctrl + Shift + % The first change will be in February, so this is the formula for C6:īy default, Excel displays this as a decimal, so click the Percent Style button on the Home tab to format it as a percent. Since January is the first month, it doesn’t have a percentage change. The general rule to calculate a percentage change is: In this expense sheet, we’ll calculate the percent change from one month to the next and put the formulas down column C. That would give us a clear picture of whether costs were heading up (a positive percentage) or heading down (a negative percentage). If we put the percentage by itself in B23, these formulas would do the trick:įinally, we might want to calculate the percentage change between two numbers. That way, you can change the percentage without having to rewrite the formulas. While all this math is correct, you might prefer to put the percentage in its own cell, rather than hard-coding it into the formulas. This is the formula you’d use to calculate sales tax in New York City, if B18 contained the total sale. (Please Excuse My Dear Aunt Sally.)īut what if you want to see the 8% amount itself, not the new total? The formula in B21 would be: Tip: Remember the Order of Operations are Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. An easy way to figure out a tip without using a calculator: Round the bill to the nearest dollar or half dollar, then move the decimal point one place left to. You can enter the formula this way for the same result: Maybe it’s late in the day and you don’t want to calculate in your head that 92% is an 8% decrease. If you think travel expenses will decrease by 8% instead, enter this in B20: For example, you can enter twenty percent as either 20% or 0.2 (with or without the leading zero). Tip: Excel lets you type percentages either with a percent sign or as a decimal. Let’s say you anticipate more travel the following year and want to know what the cost will be if the expenses increase by 8 percent. For these examples, we have a simple sheet of travel expenses and you are after the percentage results of prices going up or down for the total and for the individual months. Here are some techniques for calculating percentages. By Bob Flisser Categories: Advanced Excel, Excel® Tags: auto-fill, fill, multiply percent, percent, percent change, percentage, sales tax
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