title: Power Bi multiplying columns in different tables
body: <p>I am having problems with these tables. I need to calculate the <code>(af_escalaItem[valor]*af_servprod_criterios[peso])</code> for each <code>af_aval_id</code>, but I just can't seem to do this.</p>
  
  <p>Please see the images below for a better understanding.</p>
  
  <p>Thank you in advance.</p>
  
  <p><a href="https://i.stack.imgur.com/CZiFm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CZiFm.png" alt="a"></a></p>
  
  <p><a href="https://i.stack.imgur.com/4xn4v.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4xn4v.png" alt="b"></a></p>
  
  <p><a href="https://i.stack.imgur.com/a6SGp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/a6SGp.png" alt="c"></a></p>
  
  <p><a href="https://i.stack.imgur.com/xWuUc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xWuUc.png" alt="d"></a></p>
  
  <p><a href="https://i.stack.imgur.com/tflHQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tflHQ.png" alt="e"></a></p>
  
  <p><a href="https://i.stack.imgur.com/4gC5Z.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4gC5Z.png" alt="f"></a></p>
  
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  <p><a href="https://i.stack.imgur.com/326iH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/326iH.png" alt="h"></a></p>