% Change Automation

Configuration
1

Hi There.

Im using the Gearbest sensor and I would like to do a % change automation to notify me if the prices have dropped 10% or more. Can anyone help me figure out how to measure that?

2

If you mean 10% in 24hrs, I would set the stat sensor up to read the price as integer and use 24 hrs as period and low and high as the trigger.

3

Brilliant! Thank you! Ill give that one a go.

4

Im not sure how to pull a percentage change from that? If im understanding it correctly that would just give me an average of that sensor.

5

I was thinking a trigger like

if the high price > 1.1 times low price

or create a new % gain in 24hr template sensor

high price / low price

or

price / low price
6

I noticed today that the stat sensor add “change” and “ave change” to the attributes which might work for price increase calculations.

7

Thanks Rob, Ill be playing around with it this weekend and give your suggestions a go.