First of all, the Web to Print or Packaging Industry has massive competition in the market. If it started recently, try to provide better service with a lesser competitor price.
Concentrate more on Customer Life Time value (repetitive clients) rather than acquiring new customers.

Understand the local and Industry Leaders the market and their service & price strategies Eg: https://www.moo.com/us/ https://www.newprint.com/

All The Very Best