Formatting differences between desktop app and published report

Hi,

I have several measures that appear correctly when the .pbix file is opened on my desktop, but when i publish the same file, the same measure used in the same visual is formatted differently. For example:

Desktop version:

Public web link:

There is no formatting applied to the measure, it is just defined as a whole number. What is the reason for this difference and how can i change it?

Thanks.