How are the PC-1 & PC-2 calculated for the DES block cipher? How  are the permuted choice tables - PC-1 and PC-2 - calculated for the DES block cipher algorithm?
These are not calculated, but as with the particulars of S-boxes, suggested and reviewed as part of the design.

These fixed values/configurations are intended to add certain qualities to the particular step of each round, essentially obscuring the final output as much as possible, in a non predictable way. As you can read on Wikipedia, there is some controversy involved in the development of the S-boxes.


  There was some criticism from various parties, including from
  public-key cryptography pioneers Martin Hellman and Whitfield
  Diffie,[1] citing a shortened key length and the mysterious "S-boxes"
  as evidence of improper interference from the NSA.