IDEA: When raising prices, consider offering volume discounts to get back to the original price.

When you must increase prices, no customer will be happy with your announcement.  One thing you may want to consider if feasible is make it more pleasant by offering some options.  Raise the price on the customer’s normal order quantity but offer a reduction in price for a larger quantity ordered at one time.  You give the customer an option to help avoid some of the increase, you increase your sales and overall gross profit margin and  you end up offering a way for your buyer to avoid some of the increase by purchasing a larger quantity.