title: SQL add percentage to value in calculation
body: <p>Ive seen a few examples on here to work out how to add a percentage to a value in sql, but they don't match if I actually do the calculation.</p>
  
  <p>Ive tried "Value + (value * percentage)"</p>
  
  <p>Any other examples I can try, I have a value column and a percentage column which will be used to work out the increased/decreased amount.</p>