How large was the kaioken Goku used against Lord Slug?


I've read in the internet there is some official guide which says the kaioken
Goku used against Lord Slug was larger than kaioken x20. Does anyone know how
large was the kaioken Goku used against Lord Slug?

[![enter image description
here](https://i.stack.imgur.com/iEPoc.jpg)](https://i.stack.imgur.com/iEPoc.jpg)




In the movie _Dragon Ball Z: Lord Slug_ , after Piccolo transfers his energy
to Goku, he goes _Kaioken times 100_ and defeats Lord Slug.

A [clip](https://www.youtube.com/watch?v=tfmjDg3E5-4) indicating the same.




In the movie _Dragon Ball Z: Lord Slug_ , after Piccolo transfers his energy
to Goku, he goes _Kaioken times 100_ and defeats Lord Slug.

A [clip](https://www.youtube.com/watch?v=tfmjDg3E5-4) indicating the same.

