I am trying to create a Data Validation on entry which will only allow an entry if certain parameters are met, these parameters are based on values in certain cells. What I am try is for entries in Cell H10, allow an entry IF:-

1) If value in K10 = "C/D", then (2) below does not apply
2) A value is already entered firstly in J10
3) The value being entered in H10 has a max of 2 decimal places, eg user can enter 1000 or 1000.12, but not 1000.123

I have a part of the validation required, as detailed below, but I can figure how where to place the parameter (1) above

=AND(J10<"",H10=0.01,H10<=40000,LEN((IF(ISERROR( RIGHT(H10,LEN(H10)-FIND(".",H10))),0,RIGHT(H10,LEN(H10)-FIND(".",H10)))))<=2)