I have the following formula entered in cell E7 =IF(OR(ISBLANK(C7),ISBLANK(D7)),"",IF(D7-C7<0, 1+D7-C7, D7-C7))
and have another formula in cell H7 =IF(OR(ISBLANK(F7),ISBLANK(G7)),"",IF(G7-F7<0, 1+G7-F7, G7-F7))
and also another formula in cell K7 =IF(OR(ISBLANK(I7),ISBLANK(J7)),"",IF(J7-I7<0...