The percentage of households that were not watching the show were 46.81%.
Explanation:
In this case, we need to find the percentage of households that don´t watch the show. First, we need to know how much households don´t watch the show, this is:

So, the households that were not watching the show were 44 million.
Now we can calculate the percentage, to find a percentage we use a division and to introduce the percentage units we multiply by 100.
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
The percentage of households that were not watching the show were 46.81%.