Hi.
you need to use "Ui Slider Get Value" to get the value, and then have a float Operator and divide by 100 and store in a variable.
(or float remap instead of Float Operator that jean mentioned)
Now because this is a custom script you can not use a standard action.
Drag and Drop the component (Bleed Behavior) and select 'Set Property' and look for the corresponding property field.
you can also place the 'Set Property' action and drag the component in it.
But do not over use Get/Set Property actions, only if you have no other choice. (like 3rd party scripts)
You can always look on the
Ecosystem for many custom actions
Also if you use Get/Set Property actions you might need
Linker Wizard on certain platforms.