en	label.invoice_calculator
fa	Sum calculation

en	default
fa	Default: one entry per time record

en	short
fa	Hours: records summed up, one entry total

en	user
fa	User: one entry per user

en	activity
fa	Activity: one entry per activity

en	project
fa	Project: one entry per project

en	date
fa	Date: one entry per day (uses start date)

en	weekly
fa	Weekly: one entry per week (uses start date)

en	price
fa	Price: one entry per price