Original sentence: As of 2006, the town had an estimated population of 19,990  and forms a conurbation with Alexandria, Bonhill and Renton with a combined estimated population of 44,690.It was estimated that the flood defences would cost 30,000 pounds Scots , the cost being levied nationwide
Edited sentence: As of 2006, the town had an estimated population of 19,990 and forms a conurbation with Alexandria, Bonhill and Renton with a combined estimated population of 44,690.It was estimated that the flood defences would cost 30,000 pounds Scots, the cost being levied nationwide