What’s the standard for Tech’s per PC?

My company has two levels of support, help desk and PC tech. There are a few software specialists but the help desk and techs handle 98% of the hardware and software support issues.

We have around 1500 computer users. On a given day we have only two PC techs and two helpdesk staff. Theere are three per team, but because of the multiple tasks we each have there can only be two on call at a time. The “powers that be” can’t figure out why we are a little behind on our work. I was wonderingwhat the national average is for tech/help desk staff to PC is.

Thanks

Troy