@workingclasshistory To be precise: about 84% of the left bank Warsaw. Of which 30% after the uprising, during the planned destruction by the retreating German troops. So about 50% was destroyed since September 1939 until 1944, of course mostly during the uprising.

When including Praga (part of Warsaw on the right bank of Vistula, which was already controlled by the red army in 1944), this makes approx. 65% for the entire city.