## Formula in Excel 365

### Calculating the number of days between two dates

If you need to count the number of dates between two dates in Excel, you don't need to use

**DATEDIF**and other Excel date manipulation functions. Date in Excel isn't a separate type, but a number with proper formatting. The integer part of this number represents days since the fixed moment for all dates. Subtract one date from another, and you will get the number of days between two dates. Also, you can add or subtract an integer from the date, and get the date in the future or the past.### Creating and using named ranges

**Named ranges**are a powerful Excel feature that allows you to assign a symbolic name for the cell or the range of cells for later use as a convenient replacement for cell or range address in formulas.

### How to create a break-even chart in Excel

A revenue the company generates from selling the products or providing the services should cover the
fixed costs, variable costs, and leave a contribution margin. The point where the total operating
margin (the difference between the price of the product or service and the variable costs per item
or customer) covers the fixed costs is called a

**break-even point**.### Different rounding effects in Excel

When you work with digits, it's crucial how you round them. It doesn't depend on what exactly you
are rounding - decimals, thousands, or millions. You can see very different amounts after summing
the figures, rounded in different ways:

### How to view current stock prices and other quotes in Excel

There are countless reasons why you might need to have stock prices in your Excel spreadsheet.
In the past, you had to copy and paste from Yahoo Finance
or another financial service, but at the moment, Microsoft offers a new way to add and update
some stock information such as stock prices, changes of price, etc.

### How to calculate age in Excel

To calculate the age of a person, a pet, a project, or even some device, you need to compute a
number of complete years. The issue is that it doesn't seem enough to calculate a year's difference.
Excel proposes a very useful formula that can help you to calculate that very fast.

### How to calculate a lifetime in Excel

Sometimes it is necessary to calculate a lifetime for some devices, things. Usually, a lifetime
calculates in full months, for example, to check a warranty or guaranty period. Excel proposes
a very useful formula that can help calculate that time.

### How to calculate how many days left to or passed from the specific date in Excel

For some projects or tasks, you might need to calculate how many days, months, or years left to
some date or how many days, months, or years passed from some date till today. Excel proposes a very
useful formula that can help you to calculate that very fast.

### How many work weeks left to or passed from the specific date in Excel

When you plan a project, you can need to calculate a number of workdays or full workweeks
between the start and end dates, or how many workdays or workweeks left/passed. This tip is about an
easy and fast way of calculation of full workweeks for weeks from Monday to Sunday.

### How many weeks left to or passed from the specific date in Excel

When you plan a trip, project, etc. you can need to calculate a number of days or weeks between the
start and end dates, or how many days or weeks left/passed. This tip is about an easy and fast way
of complete weeks calculation.