Unnecessary Compound Parenthesis
Use parenthesis only to enclose compound expressions inside compound expressions. Bad code
IF ("Costing Method" = "Costing Method"::Standard) THEN  
Good code
IF "Costing Method" = "Costing Method"::Standard THEN  
Bad code
ProfitPct = -(Profit) / CostAmt \* 100;  
Good code
ProfitPct = -Profit / CostAmt \* 100;