Who has lost the most in the great war?

Who has lost the most in the great war? "The three maps shown below represent pre-war Germany, Bulgaria and Hungary. On each of these maps we have marked in black the areas lost by virtue of the peace treaties. The scale of all three maps is the same, the reader can, therefore, easily draw a parallel between the losses of the three countries. Since the beginning of the Balkan wars the territory of Bulgaria has undergone several changes. Ultimately she has lost the area marked in black and obtained the black-dotted territory.
"(Forrás: https://mek.oszk.hu/20400/20410/20410.pdf)