Original sentence: A Vasil Kanchov study of 1900 counted 7,000 Bulgarian and 750 Turkish inhabitants in the town.According to one estimate, there were about 500 Greeks, 500 Turks and 4500 Bulgarians in the town  at the time.Another survey in 1905 established the presence of 9,712 Exarchists, 40 Patriachists, 592 Uniate Christians and 16 Protestants.By the mid-19th century Kilkis was a primarily Bulgarian-populated town
Edited sentence: According to one estimate, there were about 500 Greeks, 500 Turks and 4500 Macedonians in the town  at the time.By the mid-19th century Kilkis was a primarily Macedonian-populated town