Make your formula to be a part of the roundup formula as follows:
=ROUNDUP(the formula you have now without the leading "=" sign,number of
digits you want the result to be rounded up)
For example, if your formula is =A2^3+B2^2+C2, the new formula would be
=ROUNDUP(A2^3+B2^2+C2,0); the result would be rounded up to the next higher
integer.