Printing decimal values in SSRS

Hi,

In my report I have amount field which is real and I want to print the sum value of Amount in below format

Amount : 100.50

Sum : 100.50


Amount : 100.00

Sum : 100.00

but its showing 100 not 100.00

We have Format function. M using Format(Sum(Field.value),“0.00”)

But its not showing the Sum in decimal.

Can anybody have any idea…