Two Decimal Places within Formula

How do I take this formula I am using in the Multi-Field Formula tool and make it two decimal places:

tostring(Round((([_CurrentField_])/([Open Amount USD]))*100,2)) + "%"

Accepted answers

Try changing your 2 in your formula to .01

Hope this helps!

Try changing your 2 in your formula to .01

Hope this helps!

Replace the 2 with 0.01

Simple enough! Thank you both!