Carla Vista has three product lines in its retail stores: flipflops, sandals, and slippers. Results of the fourth quarter are presented below:

$\backslash$table$[[,$Flipflops,Sandals,Slippers,Total$],[$Units sold,$960,1,920,1,920,4,800],[$Revenue$,$$$19,200,$$$38,400,$$$24,000,$$$81,600$