CITIZEN Electronic Calculator 10 Digit CT-500VII
| Function | Description |
| Display Style | Fixed Angled Display |
| Auto Turn-Off | Automatically turn off calculator. |
| Percent Key | Percent Key |
| Double Zero | Double Zero Key. |
| Tax Calculation | Price with/without Tax Key. |
| Check & Correct | Allows you to review and correct previous entries. |
| VAT / Sales Tax | Quickly add or remove local sales taxes from values. |
| Square Root | Mathematical Function. |
| Mark Up Pricing | Mark Up Pricing |
| Change Sign | Change Sign |
| Memory | Three Memory Keys. |