See if this is the query that you wanted.
SELECT ID, Company, Month, [PPM Month], [Grant Shipped], [Grant Rejected],
Round(IIf([Grant Shipped]=0,0,[Grant Rejected]/[Grant Shipped])*1000000,4) AS [Monthly Grant PPM],
[Hart Shipped], [Hart Rejected],
Round(IIf([Hart Shipped]=0,0,[Hart...