en	label.invoice_calculator
fo	Sum calculation

en	default
fo	Default: one entry per time record

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

en	user
fo	User: one entry per user

en	activity
fo	Activity: one entry per activity

en	project
fo	Project: one entry per project

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

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

en	price
fo	Price: one entry per price