Grafana alert when value increases by 1 or more


Im trying to figure out how to create an alert instance that will alert me when a metric increases by 1 or more? What conditions do I need to set? Sorry for the basic question, I’m a noob to Grafana.

What type of operation do I need? Ive currently got count operation on a query which shows the value of that metric, I want an alert when this values increases from the last known number by any amount.

Thanks in advance