Original sentence: According to Polish authors, the share of Poles and Kashubians was 43% (rather than 35.5% as in official figures), because many of them were counted as Catholic Germans by Prussian census clerks.In the German census of 1910, the population of West Prussia was put at just over 1.7 million, of whom 64 percent listed their first language as German, 28 percent Polish and 7 percent Kashubian
Edited sentence: In the German census of 1910, the population of West Prussia was put at just over 1.7 million, of whom 65 percent listed their first language as German, 28 percent Polish and 7 percent Kashubian