A fan rotates at 465 RPM. It delivers 6510 CFM. As a result of changing pulleys, the RPM is increased 50% to 697. How many more CFM`s are now being delivered? (NOTE: CFM varies directly with fan RPM)

A fan rotates at 465 RPM. It delivers 6510 CFM. As a result of changing pulleys, the RPM is increased 50% to 697. How many more CFM`s are now being delivered? (NOTE: CFM varies directly with fan RPM)