Display sum of 2 mysql colums in php

I'm trying to do this simple sum of two boolean columns in a mysql database. And make a results pane with different calculations on these 2 values. This is how the db looks like db

I'm trying to come up with a mysql statement that returns the sum of 'liked' and the sum of 'disliked'

Then I need to have this value in 2 formats:

• as an integer (just the count)
• as a percentage

This is how my php code looks like:

  if(isset($_GET['results'])){
  $get_votes = 'SELECT liked SUM(1), disliked SUM(1) AS total FROM live';
  $run_votes = mysqli_query($con, $get_votes);
  $row_votes = mysqli_fetch_array($run_votes);

  $disliked = $row_votes['disliked']
  $liked = $row_votes['liked'];

  $count = $disliked+$liked;

  $per_disliked = round($disliked*100/$count) . "%";
  $per_liked = round($liked*100/$count) . "%";

  $per_dislikedclean = round($disliked*100/$count);
  $per_likedclean = round($liked*100/$count);

I'm getting a 'division by zero' error. This is probably because mysqli_fetch_array expects a mysqli_result. Can anyone shed a light on this topic ?