The Canon P1-DHV-3 Printing Calculator is compact and lightweight, thus making it ideal for store desk. This calculator prints the calculation you have done on paper. You can use the time calculation to calculate time-based fee structures. The Canon P1-DHV-3 makes complicated tax calculations easy. You can store the tax rates in the calculator's memory and recall them anytime you want. The calculator fits perfectly in one's palm, so that person can use it without taking the support of the desk.