Serial no in foreach loop with pagination

We can use foreach collection items index as serial no (SL) in pagination.

...
<th>Serial</th>
 ...
 @foreach ($products as $product)
 <tr>
     <td>{{ $loop->index + $product->firstItem() }}</td>
     ...
 @endforeach

it will solve the issue of next pages(?page=2&...) index count from continue.