Thank you ridders!!
I used this and it works. I did not make the connection regarding the use of SUM. Very much appreciate your help!!
Saf_Deviations_Total: IIf([Saf_Pledge] & "" = "NG", 1, 0)+IIf([Saf_Tracking_Align] & "" = "NG", 1, 0)+ IIf([Saf_Injury_Tracking] & "" = "NG", 1, 0) +...