BUT - Excel shows negative quantities with a minus sign, and apart from the fact that this sign. I run a small research institute where we use Excel for the accounts we present to our Board of Trustees. One word of caution is that you may have some programs that need the alternate format. Negative Number in Brackets across entire computer (including Excel) This needs to be changed at a Windows level. How To Get Parentheses For Negative Numbers In Excel Mac Rating: 5,7/10 1007 votes