Visual refusing to change decimal places

Hi everyone,

I am having some trouble with changing the decimal places on a value shown in a Card. I have tried two ways to change it:

1) Clicking the measure name in field -> measure tools 

2) Visualization --> Visual -> Callout value

Unfortunately, none of these methods work. 

As I've had success in changing the decimal places of other cards, I am thinking it may be a filtering problem?

My sample data looks like this:

Table

And I am trying to get the minimum value of this column, which using Power BI's quick measure gives me this: