Say it like that: A company is in the black. Or in the red. E.ON colors all numbers in red. Also columns, bars, lines.
Investments. Prices. Dividends. Increase in capacity. Decrease in capacity. Norway. Germany. Internal numbers. External numbers. Positive changes. Negative changes.
Source(both): E.ON AG (Ed.), Performance and streamlining, April 2010; PDF.
Why? Because of Corporate Identity. And the companies CI says red. I’m very strict because red is a special color. A signal for bad. Everybody understands. At once. Signals for good are more difficult. What is good, what is normal?
The ones from marketing should do promotions. But no controlling.
