I suggest a Boolean called complete initialized to false, then loop through the fields in the right column (3 months) and if the field is not null, set the bool to true. Then check the bool and if it's true, you know at least one thing was filled in.
var complete = false;
//since you named all of the cells individually, we just have to look through each one.
if (!FinanceImpact7.isNull) complete = true;
if (!HealthSafetyImpact7.isNull) complete = true;
if (!ReputationSatekholders7.isNull) complete = true;