My KDP Income Report Last 90 Days From 9 Books!

Last updated on August 15th, 2025 at 10:25 am

In this KDP income report, I’m sharing exactly how much I made in the last 90 days from just 9 books — including which titles performed best, and what strategies drove the most sales.

If you’re curious about real numbers and actionable takeaways, this breakdown will give you both.

During the last 90 days, my Math Workbooks KDP brand — which I started in late 2022 — has earned me over $1,303 in royalties.

So far, I have published 10 math workbooks, 9 titles are up and live and one stays unpublished.

Below I will show you numbers in details including;

• Total income
• Total ad spend
• Net income

So, let’s dive in…

My KDP Income Report From 9 Math Workbooks

Below is a screenshot from my KDP reports dashboard showing royalties between August 22 and November 21 (Last 90 Days).

On my best days, I made well over $30/day in royalties and on my lowest days I made as low as $1.10. On average I was making $14.48 per day which is approximately $434/mo.

Majority of this income came from 4 math workbooks out of 9. Anyway, now let’s have look at ad spend.

My Amazon KDP Ad Spend

I’ve been running Amazon ads (also known as KDP ads) for nearly all of my math workbooks since launching the brand.

These ads are the sole promotion method I use for my KDP low and medium content books, and they’ve been instrumental in driving consistent sales and keeping my titles visible in a competitive marketplace.

Below is the screenshot of my ad spend in the US (Amazon.com) marketplace:

In the US marketplace I spend a total of $692.68 to generate $2,548.09 in sales with an ACost of 27.18%.

Now let’s have a look at my ad spend in the Amazon.ca (Amazon Canada):

In the Amazon Canada marketplace, I spend a of CA$69.88 which equals $50 (USD). This ad spend helped me generate CA$278.69 in sales with an ACost of 25.07%.

Total Ad Spend = $692.68 + $50 = $742.68

My Net KDP Income From 9 Math Workbooks

After netting my ad spend of $742.68 from my total KDP royalties of $1,303.54, my net KDP income during the last 90 days is;

My Net Profit = $1,303.54 — $742.68 = $560.86

So, I made a total profit (net income) of $560.86 during the last three months. This is approximately $187/month, which I know is not a staggering number.

However, It does contribute towards my total monthly income that I make from online side-hustles.

Conclusion!

Creating and publishing math workbooks in one of my favorite side-hustle as it helps me generate a decent income every single month.

To create math workbooks super-fast, I use a web-based tool called Math Worksheets Generator. It’s a paid software, which allows you to create a wide range of math worksheets in a few clicks.

👉 Check out Math Worksheets Generator: https://bit.ly/Math-Worksheet-Generator

Thanks for reading it, see you in the next one:)

Subha

Affiliate Disclosure: Some links in this post are affiliate links, meaning I may earn a commission if you purchase through them at no extra cost to you.

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