Is the grammar in this sentence correct?

The best way to increase sales and satisfy customers complaints, the menu should be updated with new food items and more choices.

2 answers

You should change it to this: The menu should be updated with new food items and more choices, since that is the best way to increase sales and satisfy customer complaints.
Here is another alternative.

For the best way to increase sales and satisfy customers complaints, the menu should be updated with new food items and more choices.

I hope this helps a little more. Thanks for asking.