When the Step Size is set to 0.1 for a Slider and Slider value is multiplied by 100, it will display weird numbers when moving the slider back from 100%. Changing the Step Size to 1 and changing the multipliers from 100 to 10 will show correct numbers. The issue seems to be the low Step Size value.
This was reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview 7 (CL-12759524), and Main 4.26 (CL-12945139)
Results: Two of the textboxs will display numbers such as 79 or 59.999992
Expected: An even 0 to 100% is displayed, incremented by 10's.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-92452 in the post.