# I'm wondering what this graph means? Ratio of Cuckattoo Blocks
**URL:** https://forum.grin.mw/t/im-wondering-what-this-graph-means-ratio-of-cuckattoo-blocks/7397
**Category:** Mining
**Created:** [June 3, 2020, 7:49am UTC](https://forum.grin.mw/t/im-wondering-what-this-graph-means-ratio-of-cuckattoo-blocks/7397 "2020-06-03T07:49:38Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@betajuice](https://forum.grin.mw/u/betajuice)
#### Post date: [June 3, 2020, 7:49am UTC](https://forum.grin.mw/t/im-wondering-what-this-graph-means-ratio-of-cuckattoo-blocks/7397/1 "2020-06-03T07:49:38Z")
[https://grin-fans.org/en/chart/ratio](https://grin-fans.org/en/chart/ratio)
Why is the expected ratio dropping? And why is there a sudden spike as of last month+ ?
(And what are the units on the left?)
thanks
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### Author:  [@tromp](https://forum.grin.mw/u/tromp)
#### Post date: [June 3, 2020, 8:07am UTC](https://forum.grin.mw/t/im-wondering-what-this-graph-means-ratio-of-cuckattoo-blocks/7397/2 "2020-06-03T08:07:51Z")
[https://github.com/Lolliedieb/lolMiner-releases/wiki/All-you-need-to-know-about-Grin-difficulty,-C29,-C31-fade-out-and-C32](https://github.com/Lolliedieb/lolMiner-releases/wiki/All-you-need-to-know-about-Grin-difficulty,-C29,-C31-fade-out-and-C32) provides some background.
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### Author:  [@johndavies24](https://forum.grin.mw/u/johndavies24)
#### Post date: [June 3, 2020, 10:39am UTC](https://forum.grin.mw/t/im-wondering-what-this-graph-means-ratio-of-cuckattoo-blocks/7397/3 "2020-06-03T10:39:28Z")
This is also a fantastic article on the algo changes
# All you need to know about Grin difficulty, C29, C31 fade out and C32
> **[Lolliedieb/lolMiner-releases](https://github.com/Lolliedieb/lolMiner-releases/wiki/All-you-need-to-know-about-Grin-difficulty,-C29,-C31-fade-out-and-C32)**
>
> Contribute to Lolliedieb/lolMiner-releases development by creating an account on GitHub.