Square tablecloth size = length width + hang length x2
For example, the length of the table is 120cmx60cm
Calculation method: (120+30x2) x (60x30x2) =180x120cm
Round table cloth size = table diameter + hanging length x2
For example, the diameter of the table is 100cm and the length is 70cm.
Calculation method: 100=100+70x2=240cm
