Proforma invoice spells out the rights and obligations of the buyer, as well as the seller, and is equivalent to the contract between the two parties. On the other hand, commercial invoice pertains more to taxes and customs clearances. Both invoices have different roles and functions to perform.
1 Small shaving or make-up mirrors start at $4-$30 for basic models but can cost $30-$150 or more depending on the level of magnification and quality of materials plus features such as being fog free (surface treatment or heating element), built-in lighting or an adjustable/extending wall mount.
1 A basic drop-in or pedestal bathroom sink starts at $50-$250 but it can cost $300-$1,000 or more for a high-end designer model. 2  A bathroom vanity starts at $40-$800 but can cost $900-$1,500 or more depending on size, style, materials and number of sinks; professional installation can add $300-$2,500 or more. Replacement windows typically cost $300-$700 each but can cost $1,000 or more each, or $3,000-$10,000 for a one-story, three-bedroom home with 10 windows.