The Reverse Percentage Calculator finds the original number based on the final number and the percentage change.

Type | Original Number |
---|---|

Increase | ? |

Decrease | ? |

## How to Use Reverse Percentage Calculator

**Enter Percentage:**Input the percentage that was either increased or decreased into the**first input**field.**Enter Final Amount:**Â Input the final value you have after the percentage change into the**second input**field.

The calculator will automatically compute and display the original amount for both increase and decrease scenarios in the table below.

### Example

**Scenario:** You have $78, which is 15% more than the original amount.

**Step 1:**Enter 15 in the “Percentage” field.**Step 2:**Enter 78 in the “Final Amount” field.**Step 3:**Check the “Increase” row in the table to find the original amount.

### Notes

- If the input is invalid (e.g., non-numeric values), the results will show ‘?’.
- This tool is useful for finance, sales, and any situation requiring reverse percentage calculations.