Finance Pac

Finally here is our Finance Pac

• Time Value of Money: directly from the manual
• NPV - IRR with solve: limited to 18 periods but easier data entry
• %T - the only missing % calculation in the HP15c from the HP12c
• +TAX, -TAX (sales tax - VAT in Europe): Calculates the sales tax or VAT and leaves in X the before tax or after tax value (depending on the calculation), and the tax on Y
• Weighted average: different from the HP12c, to be used like "1000 units ENTER price1, Σ, 1500 units ENTER price2, Σ, ..." and gives total units in Y and average price in X
• Julian day -> MMDDYYYY
• MMDDYYYY->Julian day (maybe also a version with DDMMYYYY)
• DDAYS using the MMDDYYYY-> Julian day routine
• DATE+ using both routines
• Day of week using both routines

With this overlay design (top of keys will be white, surface of keyboard yellow, angled part of keys blue)