I have 5 textboxes that are used to display values. The textboxes are formatted such that a negative number is formatted in parenthesis, for example, -0.25, (.25). Finally, I have a sixth textbox that sums the previous five values in the textboxes. The problem is that values being formatted in parenthesis is now treated as a negative in the calculation. How to calculate the values in parenthesis as negative number?