I am trying to add a Lookr filter which gives me a subset of mailings with high open rates, however the field is clearly not a number since operators like greater than or smaller than don’t work.

When I use the “greater than 30” the result I get is empty.

Is there a way to convert the value in that field into a number so I can use the “greater than” operator?

Expected to get a subset of the results with open rates greater than 30. I got empty results.