Laut Kriegsüberwachung besetzten die Russen im Januar fast 50 % weniger ukrainisches Territorium als im Dezember

What a weird sentence, or is it just me?

Did Russia lose 50% of their captured territories? Or did they gain 50% less than previous month

„Over January, Russian forces occupied 245 square kilometers of Ukrainian territory“

Never been to Ukraine, but I highly doubt that such a small area would account for 10% of all Ukraine. What kind of article is this?