nP (Scale Factor Editing)

  The scale factor lets you alter, during input or output, the
  location of the decimal point both in real values and in the two
  parts of complex values.

  The "n" is a signed or unsigned integer constant, in the range -128
  to 127, that specifies the number of positions to the left or right
  that the decimal point is to move.

  A scale factor can appear anywhere in a format specification, but
  must precede the first F, E, D, EN, ES, or G field descriptor that
  is to be associated with it and affects all subsequent real field
  descriptors in the same FORMAT statement (unless another scale
  factor appears).

  On input the scale factor of any of the F, E, D, EN, ES, and G
  field descriptors multiplies the data by 10**-n and assigns it to
  the corresponding I/O list element.  For example a 2P scale factor
  multiplies an input value by .01; a -2P multiplies an input value
  by 100.  However, if the external field contains an explicit
  exponent, the scale factor has no effect.

  E, D, EN, ES, and G field descriptors alter the form in which data
  is transferred.  On input a positive scale factor moves the decimal
  point to the left and a negative scale factor moves the decimal
  point to the right; on output, the effect is the reverse.