The cost of group health insurance for small businesses can vary greatly depending on factors such as the number of employees, the age and health of the employees, the type of coverage chosen, and the insurance company. Generally, small businesses with 2-50 employees can expect to pay between 10-15% of the premium for each employee. However, this is just a rough estimate and the actual cost will depend on the specific factors mentioned above. It's important to shop around and compare quotes from different insurance companies to find the best coverage at the most affordable price for your small business.