Original sentence: Nowadays Poznań is one of the major trade centres with Germany.Poznań is regarded to be the second most prosperous city in Poland (following Warsaw) with 202% of Poland's average GDP (PPP) per capita (2006)
Edited sentence: Nowadays Poznań is one of the major trade centers in Poland.Poznań is regarded to be the second most prosperous city in Poland, following Warsaw, with 202% of Poland's average GDP (PPP) per capita (2006)