06/04/2026
I stopped guessing my book profits. It’s time you do, too.
Let’s talk about the part of publishing no one warns us about: the math.
We spend months pouring our souls into our manuscripts. We drop thousands of dollars on developmental editors, brilliant illustrators, and custom cover designers. We finally hit publish, and then we run headfirst into a wall of confusing spreadsheets, invisible distribution fees, and unpredictable printing costs.
As an author, I realized quickly that writing the book is only half the battle. Staring at Amazon KDP and IngramSpark dashboards, I had no idea what my actual margins were. I didn't know how switching from a 6x9 standard color print to an 8.5x8.5 premium color print would impact my bottom line. I didn't know my exact break-even point. And trying to calculate my true profit across a dozen different international currencies? It was a nightmare.
If you don't know your numbers, you aren't running a business—you're funding an expensive hobby. And you're doing a disservice to your words, your sweat, blood, and tears.
I got tired of guessing, so I built the tool I desperately needed to scale my own catalog.
Enter RoyaltyLogic.
RoyaltyLogic wasn't built by a tech company guessing how the book industry works. I built it for us. It is the financial command center for independent authors and publishers, stripped of all the confusing fluff.
Here is exactly what it does for your catalog:
The Break-Even Engine: Stop wondering when your book becomes profitable. You plug in every single upfront expense—what you paid your illustrator, your editor, your cover designer, and your ad spend. The engine tells you the exact number of units you need to sell to cross into pure profit.
Trim & Paper Configuration Logic: Printing costs will make or break your margin. Input your page count, trim size, and paper type (Cream vs. White, Standard vs. Premium Color). You can instantly see how tweaking your physical book configurations impacts your royalties on KDP and IngramSpark before you ever upload a file.
Global Currency & Exchange Engine: Selling internationally is amazing, until you have to decipher payouts in GBP, EUR, and AUD. Simply select your home currency, and the app automatically calculates international pricing and exchange rates so you know exactly what your global sales translate to in your actual bank account.
Dual-Distribution Split Logic: Publishing wide? The app handles the complex margin math across DIY platforms and managed presses, so you know exactly what you are making per unit, everywhere.
Audiobook ROI Calculator: Don’t sign a bad contract. Compare the long-term ROI of paying your narrator Per Finished Hour (PFH) versus a Royalty Share split before you go into production.
The Catalog Command Center: Track the lifetime profitability of every single title, balancing your ongoing expenses against your incoming royalties in one clean dashboard.
And so much more...
You already did the hard part. You wrote the book. You paid the professionals to make it look incredible. Now it’s time to protect your profits and treat your catalog like the business it is.
Stop writing in the dark. Let RoyaltyLogic do the math, so you can get back to writing.
M. Tucker Cunningham
