title: How to check multiple conditions for calculated fields in sharepoint
body: <p>In a SharePoint calculated field how do I check two things?  </p>
  
  <p>I have the following which checks field Est OpMargin and if less than 20 sets field to BG but I would also if less than 17 set it to RG</p>
  
  <p>=IF([Est OpMargin]&lt;20,"BG","") </p>