However, before you can use these shortcuts, you must program your local tax rate into the device's memory. Because Casio calculators do not retain a pre-set rate out of the box, clearing the memory or replacing the battery will reset the rate to zero.
This procedure applies to most Casio calculators with , and % keys, including but not limited to: how to set tax rate in casio calculator
By following these steps, you can easily set a tax rate on your Casio calculator and perform calculations that include tax amounts. However, before you can use these shortcuts, you
All Casio calculators that support tax functions will have specific keys for this purpose. Before you start, look at the label above the % key. The words there are a major clue to which of the two main setting methods your calculator uses. All Casio calculators that support tax functions will