adding round function to if formula

Hi,

i have created an if formula and i want to insert a round up function within my formula. can this be done?

My formula already work well so i dont need to change anything but i just need to add a round up function within my formula.
Check my attachment as well.

IFERROR(IF(C6-D6=0,"Stable",C6-D6),IF(AND(D6="-",C6="-"),"NR",IF(C6="-","Gain","Dropped")))

Thanks