Ask HN: Google Ad metrics for a SaaS product

Hi,

I'm trying to run Google Ads for a Saas B2C product. While I'm focused on conversion and am getting results, I'm not sure of two things: 1. If my cost per conversion is too high? I can't seem to find anywhere on the internet what are the average costs/metric for google ads for saas businesses 2. How do I reduce my cost/conversion

Any help will be appreciated, thanks!