From the left hand side
of the load and trim sheet the take off mass is the lower of the boxes A,B,C.
in this case 61600.
The take off mass - operating mass (fuel+ DOM) 61600 - 49450 = 12150.
This is the maximum TL
that could be carried.
The aircraft actually
only has a TL of 11230.
There is an underload of 920 kg.