Brett Sappington, an analyst with Parks Associates, a market research and consulting company, says that though annual cancellation rates among traditional cable and satellite distributors hover around 4%, surveys of consumers show that churn rates at streaming services tend to be significantly higher. Netflix, which has the lowest turnover rate of any streaming service, still loses about 7% of its existing subscribers each year, he says. It goes up from there. “The newest services are the ones that have the highest churn,” Sappington says.

From the article "The Streaming Video-on-Demand War Is Going to Get Bloody" by Felix Gillette and Gerry Smith.