Issue showing percentages with card views

[Taylor_Felt]

Hello,

I have noticed a problem while using card views. It works most of the time, but when I change the image (which is a percentage) to a different column, I get the image shown below. 

It should look like this. 

[WillowMobileSys]

For the column that generates that image, how/where is it updated?  I mean I assume it adjusts dynamically as the value changes.