Hello,We ran into similar issues in our system and on my search I failed to find the solution from any of the other similar questions. This question however showed up in search engine multiple times, so I will tell what our issue and fix was even if ...

Great blog, you helped another younger ABAP dev making calculation types with this post I thought rounding down in a calculation type would be as easy as using FLOOR on the value but trial and error with multiplication led me here.