How to generate numbers between 0-100 randomly but incrementing

Hello,

I want to generate progress values which may change from 0 to 100, but has to be incrementing since the progress has to build on the previous (e.g., 10 => 40 => 60 => 100). For example, 40 => 30 => 50 => 90 would not work. Is there a way to achieve this?