Let’s say you made a chart to show actual and forecast values. By default, both values look in same color. But we would like to separate forecast values by showing them in another color.
If you are a seasoned Excel user, you may be thinking, “Oh, that’s easy. I will just create 2 sets of data (one for actual and one for forecast), make a chart from them and apply separate colors.”
But here is a really simple way to get the same effect.
Use a semi-transparent box to mask the forecast values. The end result is shown below.

Here is how the trick works:
- Create the chart from all values.
- Draw a rectangle (box) shape on your spreadsheet.
- Fill it with white color and remove outline (set the outline color to no line).
- Select the box, Go to Fill > more colors and set it to 50% transparent.

- Place the box on top of chart, adjust its size and position to overlap the forecast data.
- Your forecast looks in a different color!
See below demo to understand the process:

Learn more about forecasting
If your work involves trend analysis & forecasting, check out below resources:
- Introduction to trend analysis in Excel – podcast
- Doing trend analysis & forecasting in Excel – 3 part series
- How to highlight best months & weeks in charts
How do you highlight your forecasts?
My personal favorite is to use dotted lines to separate forecasts. This involves either using Excel’s chart trendline option or adding a dummy series thru formulas to show the forecast line. When I am in a hurry, I usually add a semi-transparent mask to set aside the forecast values.
What about you? How do you highlight forecast values in your charts? Please post your technique in the comments area.

















6 Responses to “A quick personal update”
Thank you for the personal update. It was quite encouraging and a breath of fresh air in my Inbox. Take care and stay safe.
David
Doctors advise:
Virus obstructs lungs with thick mucus that solidifies.
Consume lot hot liquids like tea, soup, and sip of hot liquid every 20 min
Gargle w antiseptic of lemon, vinegar, & hot water daily
It attaches to hair/clothes detergent kills it, when come from st go straight shower
Hang dirty clothes in sunlight/cold overnight or wash immediately.
Wash metal surfaces as it can live on them 9 days
Do not touch hand rails
Do not smoke
Wash hands foaming 20 sec every 20 min
Eat fruit/veg and up zinc levels.
Animals do not spread it
Avoid common flu
Avoid eat/drink cold things
If feel sore throat do above immediate as virus is there 3-4 days before descends into lungs
Would love help with my database mgt in excel.
Thanks for being thoughtful of us.
BTW How do you track your expenses/income in excel? Can you share the worksheet please.
Stay safe you and your family, best wishes.
Thanks for the update and happy to know that you and family are doing good. A 21 day lockdown has now been announced in India (I live around Kolkata) so it's uncertain times ahead. I check up on your wonderful articles often and will do so even more regularly now. Stay safe and God bless.
Hi from Argentina, I follow you for a lot of years now. We here are in a quarantine for 2 or 3 weeks, because the pandemia.
Excel is also my passion and I came here looking for a Num2Words formula, but in spanish. If anyone have it, please let me know.
Best regards.
Pablo Molina
La Rioja - Argentina
I'm glad to have your personal update. I'm from India & following you for so many years. Cheers to have any further personal update.