Multiply Formula Error

[Tyrone_Elliott]

Form some reason if I try to multiply or divide I get error however addition and subtraction works fine. What am i doing wrong?

[Gavin_Fudge1]

Try wrapping them in a VALUE() function:

VALUE({Hold}) * VALUE({Dosage})

INT() will do the same thing, but returns an integer rather than a float.

Bit more info on this thread