Showing a certain value if condition is met

[#1]

What I am trying to show is the percentage of fees not paid by dividing two fields,  TotalOutstanding (A) and TotalPaid (A). In some cases A is greater than B so the rate is > 100.

What I want is, if the amount is greater than 100, show 100%, else show the calculated amount

This is what i have so far

if( 

(Sum (TOTALOUTSTANDING)/Sum (TOTALPAID)*100 >= '100')

, '100%',

SUM(TOTALOUTSTANDING)/Sum (TOTALPAID)*100

)

[#2]

i created another chart, and its showing 1. Now i justt have to change the number field. So your solution helped. Thanks!

[#3]

It's not showing as a percentage