Histogram with dynamic bins

Hi Experts,

I need to create a histogram of scores (ranging from 0 to 1), with selection of dynamic bins (as multiple of 0.025*, 4 selections - 0.025, 0.05, 0.075, 0.1), referring to the source How to create a dynamic histogram in Power BI with adjustable bins (datacornering.com) however i fail to do the same.

what if parameter with bin size :

the chart do not look quite right...

I tried to adjust some values in DAX but fail.....Might anyone could help? thank you