Do you have wallpaper like sealing glue, so wide, and not wider?
But the specifications of wallpaper are not exactly the same as those on your wall
So you have to buy more than 2 square meters, so: 662.5= (12.5*2) =687.5 yuan, plus glue, it will be 700 yuan.
6*3*2=36 square meters, 4*3*2=24 square meters, 36+24=60 square meters, 60-7=53 square meters, 53*12.5=662.5 yuan
