Configurations for 50 active conferences with each conference 50 Participants

Hello,

I will have a social online education event which is will have max 50 participants in each room/conference. Our predictions will be around max 50 conferences at the same time.

We have a server that already installed Jitsi Meet.
This server has specs 12CPU and 24GB of RAM.

After I surf around in this forum, I found that we need extra JVB + OCTO enabled to handle case like this.

I plan to buy another server to install the JVB with specs
8CPU and 8GB of RAM.

With that specs, how many new servers that I need to install JVB to handle 50 participants on each 50 conferences?

Is that any suggestion from you guys?

Thank you.