Tutoring financial math, you might fall in love with a calculator. The tutor tells about markup on the HP-10B.

Example: Imagine you buy a product for $35, then want to apply a 25% markup. Find the tag price using the HP-10B.

Solution:

1. Key in 35 then CST
2. Key in 25 then the orange key then MAR
3. Press PRC

HTH:)

Source:

Hewlett-Packard HP-10B Business Calculator Owner’s Manual. Corvallis: Hewlett-Packard, 1994.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.