What can an ad click cost before it loses money? With your series counted
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R. S. Breed Founder
Most ad advice says to watch your ACoS. But if book 1 is part of a series, a reader who buys it is worth more than book 1's royalty, because some of them go on to buy book 2 and book 3. Ignore that and you'll switch off ads that were working.
Put your numbers in here: https://bervet.com/tools/ad-break-even-calculator
- your royalty a sale for each book, and book 1's list price
- how many readers go on to each next book (the KDP report reader works this out from your sales)
- if you're in Kindle Unlimited: each book's KENP page count, your rate a page, and roughly how many of your readers borrow
It shows:
- what a new reader is worth, with and without the rest of the series
- break-even cost per sale: the most one sale from an ad can cost
- break-even ACoS and ROAS against book 1's price
- break-even cost per click for different conversion rates, and for yours if you enter it
An example: a $0.99 book 1 (35¢ royalty) with two $2.99 sequels, where 40% go on to book 2 and 70% of those to book 3. Book 1 alone can only afford about 3¢ a click at 1 sale in 12 clicks. With the series counted, a reader is worth $1.74, so a click can cost about 14¢ and the ad still breaks even.
It's all your own numbers, worked out in your browser. No account needed.