Your list of rental boxes on the hippoRENT website includes the details of the prims on each parcel of land, if you’ve enabled prim counting for that rental box and it has a tenant. Prim count information is displayed under the time left indicator, like this:
If you forget that A, G and T stand respectively for all, group and tenant prims, just hover your mouse over the word “Prims“ to get a useful tooltip ...
By default, prim counts are only shown when there is a tenant. However, you can choose to show them at all times by going to the “Preferences” page within the hippoRENT website and ticking this option: