Print on demand behemoth IngramSpark has updated their pricing, with the following points covered in their release:

Effective April 1, 2025, IngramSpark will adjust print-on-demand pricing.

What this change means for you:

Pricing adjustments will result in some books costing more, while others will cost less. View our complete pricing and services guide, including any available discounts here.
Black and white books are now priced more competitively, offering even greater affordability.
Higher discounts are available on books you purchase from us directly.
Ultra-premium color books are now eligible for discounts. Ultra-premium color features offset-quality color printing achieved through a toner printer, making this option perfect for titles rich in images and illustrations.
Books enabled for distribution gain access to our global distribution network of over 45,000 retailers, librarians, universities and educators and are assessed a 1.5% market access fee.

Service fees remain unchanged:

FREE title setup. Upload your books for free*.
FREE revisions on new books. Revise your book within 60 days of the book’s first production date and you will not be charged a revision fee.
Simplified shipping for orders printed and shipped within the United States with standard and basic options.

Beginning February 15th, you can use our publisher compensation calculator to see what you’ll earn for books sold after March 31, 2025. You may want to consider a list price adjustment on your books to maintain your current publisher compensation rates. Need help making a list price change? View our help article.

Alternatives to IngramSpark include Amazon Kindle Direct Publishing, Lulu and BookBaby.