ITC 04 taxable value?

in ITC 04 RETURN.

1)what will be the taxable value?

when the job worker sends back the material to manufacture (principle).

Pls clarify. Will it be original value or original value plus value added by job worker.

2)I textiles we are sending raw materials in kgs and receiving back finished goods in meters.

in job work to manufacture page what will we enter ?
we have supplied in kgs and receiving back in meters.