I am having trouble with what I think is a simple problem but it just won't change. Imagine a bar chart where a goal is at 99.9% and the actual is 99.94% For reasons I can't figure out tableau is rounding up showiing both at 100%.

good morning - Tableau like most software carries the data and calculation results at a higher precision than you see in the viz - you control what you see with format - then

try that - if you do not get the result you want, then please post the workbook