How to get instant value inside query which contain not instant value

Hi, i’m new to Grafana and prometheus. I’m trying to achieve query like (instant value * non instant value). I tried to use @ end() but got an error
"2:25: parse error: unexpected character: '@'"
Also i tried to separate queries and enable “instant” checkbox, but i’m not able to use query result in my expression. So, is there any another ways to achieve my goal?

Please can you give us a little more information to help us understand your
situation?

For example:

  • What Grafana version and what operating system are you using?

  • What are you trying to achieve?

  • How are you trying to achieve it?

  • What happened?

  • What did you expect to happen?

  • Can you copy/paste the configuration(s) that you are having problems with?

  • Did you receive any errors in the Grafana UI or in related logs? If so,
    please tell us exactly what they were.

Thanks,

Antony.