Accepted color or treatment for negative numbers?

1. What color indicates negative values?
2. Why were negative numbers not accepted?
3. How do I color positive and negative numbers in Excel?

What color indicates negative values?

As most people know, red is a color used in many apps to display negative numbers, specially in financials.

Why were negative numbers not accepted?

Although negative numbers were used in calculations, negative answers to mathematical problems were usually considered meaningless and were discarded. The ancient Greeks also dismissed any solutions to equations that came out negative. They called them "absurd" and "impossible" and completely ignored them.

How do I color positive and negative numbers in Excel?

If you want to use the fill color option, first select the cells that you want to add color to. Then, go to the format tab and click on the fill color drop-down menu. From here, you can choose to have all positive numbers be one color and all negative numbers be another color.