So, if your subtotal is $1,000 and you need to apply sales tax at 5 percent, multiply $1,000 by 0.05 to arrive at $50. Add your subtotal to the tax your're charging to arrive at the total amount ...

Example of a Pro Forma Invoice. ... Add all of the items and show the result as a subtotal of charges before any shipping and handling fees are added. Payment Terms.

Tension Software has released Invoices v1.1, an update to its invoice printing and management software for Mac OS X. It costs $35; the update is free for registered users. A demo is available ...