1. What-If Analysis, Charting, and Working With Large Spreadsheets
Excel Project Three
What-If Analysis, Charting, and Working With Large Spreadsheets

2. Excel Project Three
Excel’s automatic recalculation feature to complete what-if analysis
Absolute cell references
The if function
Working with large worksheets

3. Using cell references
When setting up a worksheet use as many cell references as possible in your formulas
Cell references in a formula are called assumptions
Change the assumptions, and you can change the output of your worksheet

4. Project Three Description
Need: a worksheet and 3-D Pie chart showing projected monthly revenue, expenses, and net income
Data: Projected revenues and assumptions based on historical data. Other values computed by formula
Calculations: based on assumptions

5. Series
Series is mathematical term for a sequence of terms with some relation between them
Relation generates the next term of the series
Sequence can be numbers, dates, or another pattern
Fill handle allows you to quickly set up and expand a series

6. Absolute vs. relative addressing
When you copy cell references from one cell to another, Excel normally updates the cell reference
Example: autosum on one column, then copy it one column over and references are updated

7. Absolute references
Sometimes you want to include a single value in calculations in different parts of your spreadsheet
You can “turn off” the Excel cell reference updating with absolute references (with $)
See table p. 3.25

8. Entering formulas with absolute references
Change to formulas version (CTRL + ACCENT MARK (`)
Follow formula exactly
Be careful, it is easy to make a mistake!
To see what happens without absolute references, leave one out and show how

9. The if function Allows excel to examine a value and make a decision
Make a logical test using comparison operators
Has three parts
Logical test
The value if true
The value if false

10. Excel as an analysis tool
What-if analysis – change assumption, use undo to reset
Goal seeking – allows you to analyze relationships between values in your spreadsheet and optimize a value

11. Summary of project three
Using the format painter
Creating a series with the fill handle
Using absolute references in a formula
Using the if function
Entering the system date
Adjusting assumptions
Using goal seek

12. Summary cont. Selecting non-adjacent ranges for a pie chart
Creating an exploding pie chart
Freezing and unfreezing worksheet titles