Table structure to store formula to calculate amount

See more:

SQL-Server-2012

 Hi All,
 
Could you please suggest the table structure to store the below formula:

Amount Formula	Field A		Field B		Field C		Field D		Field E		Field F		Field G
													
	Dropdown with options		Operand		Dropdown with options		Operand		Text Value		Operand		Text Value

Thanks in advance.

Vinay

What I have tried:

I tried two options:

1. Created a table which will store all operands with drop down.
Created a table which will store all operator
Created a table which will store all all textbox value.

2. Created a table to store all the 7 field values.