Enter **the first price (cost) (a)**:

Enter **the second price (cost) (b):**

Calculation results:

The percentage difference for **the second price (cost) (b)** relative to the **first price (cost) (a)** is:

The percentage difference for **the first price (cost) (a)** relative to the second price (cost) (b) is:

Price difference **b — a = **

## How to determine the percentage difference between two prices for an item?

It can be determined using a simple formula:

The difference relative to the first cost (a) is:

c = (b-a) / a * 100, where

- c- percentage difference
- a — first cost (price)
- b — second cost (price)

This difference denotes by what percentage the second value (b) is more (or less, if the sign is «-«) relative to the first value (a).

The difference relative to the second cost (b) is:

c = (a-b) / b * 100, where

- c- percentage difference
- a — first cost (price)
- b — second cost (price)

This difference denotes by what percentage the first value (a) is more (or less, if the sign is «-«) relative to the second value (b).