Place charts on an existing "worksheet" (insert a new worksheet first if necessary), not a "chart" sheet.

Chart sheets are more cumbersome for adjusting & display of multiple charts on one page.
There are several inconveniences you can avoid later on by doing this.

If limited or continually updated data entry use the same worksheet as your data.
This allows you to instantly see the results of your input.

=IF(A1="","All Office's Sales",CONCATENATE(A1," ","Office's Sales"))

The formula is =IF(Expression,True,False) which checks first to see if A1="" (blank) is True/False.

If true then "All Office's Sales" is used.

If false then the CONCATENATE (join) function is used to combine A1 "Anytown" & a space " " & the text "Office's Sales" to create "Anytown Office's Sales" (without the quotation marks).

Note how ( ) defines both the primary IF formula, & the nested inside CONCATENATE function.
Also how commas separate the requirements of each.

Data must be in columns, with headings at the top of each.

AutoFilter uses drop-down arrows to select & quickly view data for any group or many combinations.

PivotTables quickly add, multiply, average, & perform other functions.
Combine further with calculated fields & items.

There are quirks, such as hiding data for time periods that haven't occured yet.
For ex. you might have actual data through March, but all months from last year, in your database.
You need to "hide" April-December to compare performance against Jan-Mar last year.
Otherwise you'll be adding only 3 months this year, against 12 months last year!
Each month, after entering/importing new data & refreshing, unhide the next month.

If the answer is frequently, VBA or simple macros can be amazing tools.
If not, coding may take more time to accomodate the multitude of variables or user errors.

In code to be distributed to others, always include error handling, failsafes to protect from data loss or unpredictable results!
On Error GoTo Err_MakeUpAnErrorName
is a basic example, place first in your code right below Sub YourCodeName() then after all your other code place this
Err_MakeUpAnErrorName:
add an Exit Sub right before this statement so the error handling code ONLY runs if there's an error
below Err_MakeUpAnErrorName: place code to restore any defaults you've altered, restore screenupdating to true, etc. & then Exit Sub!
Don't leave your users stuck in the Visual Basic Editor trying to decide "debug or end error number what"?
A message box is a good idea to let them know something went wrong & possibly to notify you or...

The Immediate Window is one the most powerful tools, often the best use for this is quick snippets of code to perform tasks immediately that you really don't need to write an entire procedure for, but are impossible or time consuming using normal Excel features!
Otherwise use it to test portions of code as you write complex procedures!

Those in production operations, or working with Customers, may not understand (or care about) the language used in corporate goals, mission statements, charts, or reports.

Executives may miss the significance of points presented, & miss many an opportunity!

Managers in the middle have to effectively bridge many such gaps.

When preparing performance information downstream, show any effect on the audience or individuals.
Only in management does the reality of bad business = bad pay, or failure, register easily.
It's crucial to make a simple connection between performance or goals & their effect on the employee!

Click on Slide Show / Custom Animation. Select each "object" on a slide & assign a variety of options.