We just did some research on 50 of our clients' sites recently and came up with these results in regard to visitor conversions. Although these were paid clients, we do have a free analytics tool in the Shopify App store called Market Insights. Don't worry we don't want your money. You will NOT get any sales calls from us. Simply, this app is a free analytics tool that allows your to compare your sites performance to your competitors in the same retail segment.