title: Pass Minus Values for a SP
body: <p>I need to pass a value for a SP by multiply it by -1.</p>
  <p>This is my query and I want pass the quantity by multiply it by -1.</p>
  <pre><code>SELECT top 1 @partid=partid, @unitCostU=unit_cost, @Quantity=qty
  FROM parts_table
  
  Exec ins_exusage @partid, 4, @Quantity, @unitCost
  </code></pre>
  <p>Is there any way to do this?</p>