##### Mathematical Examples

This screen demonstrates the use of the "Mathematical calculation of a field" option and how it may be used to produce a "virtual" field's value by performing a mathematical calculation.

Calculate the Gross sales price of a transaction by multiplying the Net sales price by the Current sales tax rate and adding the result to the Gross sales price:

 DC@P201607         Mathematical calculation of a field                                                                                          File: SALTRN     Sales Transaction file                                                                                                         Virtual field: GRSPRC     Gross sales price                                                                                                     Derive "virtual" field on input from file . . : YES YES, NO                                                                                       C A L C U L A T I O N    S P E C I F I C A T I O N                       Value 1     Operation  Value 2        Result                            __________      S      0_________     GRSPRC____                        NETPRC____      /      100_______     *WORKNET01                        *WORKNET01      *      SALTAX____     *WORKTAX01                        NETPRC____      +      *WORKTAX01     GRSPRC____                        __________      _      __________     __________  +                                                                                                                                                                  Fnn=Help  Fnn=Exit  Fnn=Cancel  Fnn=Messages  Fnn=Change  Fnn=Delete