Why is Scorecard Metric status dependent on the format of change?

[PtrckG]

I have a scorecard metric to monitor the change of a result to make sure I'm notified when its fluctuation is above a certain percentage of the previous day's value. The rules are straightforward as shown in the screenshot.

 Rules

Today I got a warning for a very minor change, which doesn't satisfy any of the rules. No matter how I updated the rules, I couldn't get the right status. 

But if I change the "Display as" option in "Time Period" tab from "Absolute value" to "Percentage", I got the right status.

Could anyone explain why, under the same rules, different "Display as" options would result in different statuses?

 Wrong status for the small changeOriginal "Display as" optionNew "Display as" optionCorrect status under the new "Display as" option

[PtrckG]

This is really weird. I created two manual metrics with the same rules but different scale of number. The "Absolute value" option can produce the correct status for the small number, but not the big one 🤯, while "Percentage" shows correct status for both numbers.