# Offset Pie Slice with Greatest Contribution

This example shows how to create a pie graph and automatically offset the pie slice with the greatest contribution.

Set up a three-column array, `X`, so that each column contains yearly sales data for a specific product over a 5-year period.

```X = [19.3, 22.1, 51.6 34.2, 70.3, 82.4 61.4, 82.9, 90.8 50.5, 54.9, 59.1 29.4, 36.3, 47.0];```

Calculate the total sales for each product over the 5-year period by taking the sum of each column. Store the results in `product_totals`.

`product_totals = sum(X);`

Use the `max` function to find the largest element in `product_totals` and return the index of this element, `ind`.

`[c,ind] = max(product_totals);`

Use the `pie` function input argument, `explode`, to offset a pie slice. The `explode` argument is a vector of zero and nonzero values where the nonzero values indicate the slices to offset. Initialize `explode` as a three-element vector of zeros.

`explode = zeros(1,3);`

Use the index of the maximum element in `product_totals` to set the corresponding `explode` element to 1.

`explode(ind) = 1;`

Create a pie chart of the sales totals for each product and offset the pie slice for the product with the largest total sales.

```figure pie(product_totals,explode) title('Sales Contributions of Three Products')``` 