In my prestashop store, I have two variables `per_sqft_price`

and `per_box_price`

. per_sqft_price is having currency (`$`

) sign before. I am trying to print the multiplied value of those 2 variables. But it is always printing 0.

```
{assign var = per_sqft_price value = $product.price}
{assign var = per_box_price value = $product.features[0].value}
<meta itemprop="per_sqft_price" content="{$per_sqft_price|replace:'$':''}"/>
{math equation = "x * y" x = $per_sqft_price y = $per_box_price }
```

Please help me how can i solve this. Thanks in advance

Use `$product.price_amount`

instead of `$product.price`

, it gives numeric price output without currency sign. And be sure that `$product.features[0].value`

is numeric as well, because it may be a string and may contain just a text. Also, you can use `intval`

for your variables like:

```
{math equation = "x * y" x = $per_sqft_price|intval y = $per_box_price|intval }
```

### Answer：

Try this code:

```
{$result = ($per_sqft_price|intval) * ($per_box_price|intval)}
```

It’s not a standard way but it may work