public Decimal minus(Decimal subtrahend) {
        if ((this == NaN) || (subtrahend == NaN)) {
            return NaN;
        }
        return new Decimal(delegate.subtract(subtrahend.delegate, MATH_CONTEXT));
    }
public Decimal minus(Decimal subtrahend) {
        if ((this == NaN) || (subtrahend == NaN)) {
            return NaN;
        }
        return new Decimal(delegate.subtract(subtrahend.delegate, MATH_CONTEXT));
    }
public Decimal minus ( Decimal subtrahend ) { if ( ( this == NaN ) || ( subtrahend == NaN ) ) { return NaN ; } return new Decimal ( delegate . subtract ( subtrahend . delegate , MATH_CONTEXT ) ) ; }
Returns a {@code Decimal} whose value is {@code (this - augend)},
with rounding according to the context settings.
@param subtrahend value to be subtracted from this {@code Decimal}.
@return {@code this - subtrahend}, rounded as necessary
@see BigDecimal#subtract(java.math.BigDecimal, java.math.MathContext)
Returns a {