Convert two rows to one

Is it possible to convert the footer into one row? The table is two rows, but I want the footer to be a single row with centred text.

I tried this to center, and it worked:
.tablepress tfoot th {
text-align: center;
}

I tried this to convert two rows into one, but it did not work:

.tablepress-id-4 .row-12 {
width: 100px;
}

.tablepress-id-4 .column-12 {
width: 100px;
}

The page I need help with: [log in to see the link]