Add the description first, then use a pipe symbol "|" and add the price, then another "|" and the VAT value.
A status value can be added after another "|"
For example:
Continental Breakfast | 7.00 | 20| Status
Full Breakfast | 12.50 | 20
If the VAT is not defined the default property VAT value will be used.
The status is optional and can be left out. Template variables are available to calculate invoice balances based on the status value.