IF formula with variable column value to plug into equation

[Lilac]

I am trying to create a formula to fill a column where the variable in the equation is based off of the value in another column.  i.e.   column C can contain codes 01, 02, 03 ,04 ,05, 06, 07, 08.  if column c is 02,03,06, or 07 the variable multiplier is .30 .  IF c=02,03,06,07 then multiply column D Value by .30

If c = 01, 04, 08 then multiply column D value by .40.  Place value in column M

[#2]

@Lilac-

Something like the below:

=IF(OR(C1=2,C1=3,C1=6,C1=7),1*0.3,1*0.4)

* 1 used as a placeholder*