Financial calculator

A financial calculator or business calculator is an electronic calculator that performs financial functions commonly needed in business and commerce communities[1] (simple interest, compound interest, cash flow, amortization, conversion, cost/sell/margin, depreciation etc.).

[2] It may be user programmable, allowing the user to add functions that the manufacturer has not provided by default.

[3] Examples of financial calculators are the HP 12C, HP-10B and the TI BA II.

[4] A wide number of graphing calculators, like the Casio FX-9860GII, the Texas Instruments TI-89 Titanium, and the Hewlett Packard HP 48gII include complex financial calculations, as well as spreadsheet applications such as Microsoft Excel, LibreOffice Calc, and Google Sheets.

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HP-12C financial calculator including functions to calculate depreciation and net present value .
Backside of the above HP-12C with some use cases with the respective keys to be pressed for frequent tasks from the field of finance