New Card - Rate of Change

[jensenuk]

I can’t find one so could a suggest a “Rate of Change” Card.
Operation of the card would first need to select a changing, numeric entity. Like a user needs to do for the gauge card.
Option 1 for the card could be “Time Period”, where the user selects to time frame for the received data to be compared over, per X (min, hours or days)
Option 2 could be “Range”, this is not a fixed data value but a window of range expected within the time period set. The range centre point would be calculated from and be reset continuously tracking the data value received by the entity which matches the time value of 50% of full time period.
Output for the card an arrow showing direction of change and if option 2 is selected severity of change.
Without option 2
An arrow point straight up = “value increasing”
An arrow pointing horizontal = “no change in value”
An arrow pointing straight down = “ value decreasing”
With option 2
An arrow point straight up = “value increasing” by more than 50% of expected range
An arrow pointing up 45deg = “ value increasing by less than 50% of expected range
An arrow pointing horizontal “no change in value”
An arrow pointing down 45deg = “ value decreasing by less than 50% of expected range
An arrow point straight down = “value decreasing” by more than 50% of expected range

is this possible?
Cheers