title: Sql server Query need to calculate YTD utilization
body: <p>I need to fetch the utilization percentage from table using sql query.For which i need to take the sum of previous month  utilization percentage value  to current month.</p>
  
  <p>For example.</p>
  
  <p>For calculating  feb utilization% value i need to take sum of 
  jan(utilization % + feb utilization %)</p>
  
  <p>For Mar utilization %  =(jan+feb+ mar)
  For Dec utilization % =Jan+feb-------To + dec.</p>