It's tough to say how much you can earn using a WooCommerce website as it varies from site to site. Indeed WooCommerce is a fantastic platform to make money as the operating cost is much lower than other platforms. But the actual profit/revenue of eCommerce websites depends on the company’s business plan, marketing strategy, relevant product collections, proper site optimization, Search Engine Optimization (SEO), determination, product pricing, and many other factors. So you see, making revenue using WooCommerce plugins is totally up to how you're managing your business. But the revenue can certainly be higher than the competitor's platform due to its lower operational costs.