Considering you already have a mechanism to get people aware of and interested in your product (or in other words a marketing funnel), then conversion rates are arguably the most important key performance indicator for your early-stage startup.
The obvious reason is that a higher conversion rate makes you more money. More importantly in the long run, however – a high conversion rate indicates that you are succeeding at convincing people that your solution would solve the problem you are targeting and add value to their lives.
In the early startup stages, product-market fit is all you should think about – it is the main predictor