homeassistant_storepreviousstate.yaml

#input_number:
#  start_of_day_vix:
#    name: Start of Day VIX
#    min: 0
#    max: 1000000

counter:
  start_of_day_count:
    name: Rob Start of Day Count
    minimum: 0
    maximum: 1000000
    
sensor:
  - platform: template
    sensors:
      important_sensor:
        friendly_name: Rob Important Sensor
        value_template: 500
      relative_sensor:
        friendly_name: Rob Relative Sensor
        value_template: "{{ (states.sensor.important_sensor.state | int) - (states.counter.start_of_day_count.state |  int)  }}"

homeassistant_update_previous.flow

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*","once":false,"onceDelay":0.1,"x":110,"y":720,"wires":[["731ac220.3e79ec"]]},{"id":"aed13cc9.f7d4e","type":"api-current-state","z":"1b91f7bf.137638","name":"","server":"6d8c6825.af9008","version":1,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","override_topic":false,"entity_id":"sensor.important_sensor","state_type":"num","state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","blockInputOverrides":false,"x":350,"y":40,"wires":[["d70ab18e.cc09a"]]},{"id":"d587e338.61a8e","type":"inject","z":"1b91f7bf.137638","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":40,"wires":[["aed13cc9.f7d4e"]]},{"id":"d70ab18e.cc09a","type":"debug","z":"1b91f7bf.137638","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":410,"y":120,"wires":[]},{"id":"f0a528c3.0c11c8","type":"api-call-service","z":"1b91f7bf.137638","name":"","server":"6d8c6825.af9008","version":1,"debugenabled":false,"service_domain":"counter","service":"configure","entityId":"counter.start_of_day_count","data":"payload","dataType":"jsonata","mergecontext":"","output_location":"","output_location_type":"none","mustacheAltTags":true,"x":380,"y":440,"wires":[[]]},{"id":"c099de50.064","type":"inject","z":"1b91f7bf.137638","name":"","topic":"","payload":"{\"value\": 100}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":110,"y":480,"wires":[["f0a528c3.0c11c8","a4a65349.cf377"]]},{"id":"a4a65349.cf377","type":"debug","z":"1b91f7bf.137638","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload.value","targetType":"msg","x":390,"y":560,"wires":[]},{"id":"4c0a2727.ef0318","type":"inject","z":"1b91f7bf.137638","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":240,"wires":[["483df92c.460898"]]},{"id":"483df92c.460898","type":"api-current-state","z":"1b91f7bf.137638","name":"","server":"6d8c6825.af9008","version":1,"outputs":1,"halt_if":"","halt_if_type":"str","halt_if_compare":"is","override_topic":false,"entity_id":"sensor.relative_sensor","state_type":"num","state_location":"payload","override_payload":"msg","entity_location":"data","override_data":"msg","blockInputOverrides":false,"x":370,"y":280,"wires":[["c315e72d.f30878"]]},{"id":"c315e72d.f30878","type":"debug","z":"1b91f7bf.137638","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":410,"y":340,"wires":[]},{"id":"7f24d369.9ad80c","type":"function","z":"1b91f7bf.137638","name":"","func":"msg.payload 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Assistant","legacy":false,"addon":true,"rejectUnauthorizedCerts":true,"ha_boolean":"y|yes|true|on|home|open","connectionDelay":false,"cacheJson":false}]