| Overload | Description | 
|---|---|
| Subtraction(AnnualInterest,AnnualInterest) | Substract y to x. | 
| Subtraction(AnnualInterest,TimeSpan) | Substract annualInterest to timeSpan and returns the result in an AnnualInterest value. | 
| Subtraction(TimeSpan,AnnualInterest) | Substract timeSpan to annualInterest and returns the result in an AnnualInterest value. | 
| Subtraction(Nullable<AnnualInterest>,AnnualInterest) | Substract x to y. If x is null, returns null. | 
| Subtraction(AnnualInterest,Nullable<AnnualInterest>) | Substract x to y. If y is null, returns null. | 
