Drupal 7 commercial. Enter programmatically the price field in the material template file?

Question

Drupal

Hello!
It is necessary to display the price in the product display on the right of the header, for this I created a separate material template for the product display. I found on the net that it can display the price in this code <?php print render($content['product:commerce_price']); ?> But for some reason it does not display anything, tell me what could be the problem. Thank you.