Est. 1999

Calculate payments on a loan

  1. HP-10B keystrokes
  2. 1 12 P/YR

    Sets twelve periods per year

  3. 2 30 N
  4. 3 8 I/YR
  5. 4 80000 PV
  6. 5 PMT = - 587.01

P/YR tells the calculator how many payments there are in a year. Set it first: 12 for monthly, 1 for annual. It stays set until you change it. The plain gold key is the shift key. Press it immediately before another key to reach the gold function printed above that key.