Three methods:

Go to this site:

http://davidmlane.com/hyperstat/z_table.html

Leave the mean set at 0 and the Sd at 1

Check "Above" if it isn't already checked.

Beside "Above" type in -3.24 

At the bottom in blue you see:

Shaded area: 0.999402 

Method 2:

Go to the z table in your book. Find 3.2 on the left
z-column.  Find .04 across the top, and read 0.4994,
then add .5 for the left half of the curve, getting
0.9994.

(Some tables give you the 0.9994 directly)

Method 3:

TI-83 or TI-84

From the main screen,

Press 2ND VARS 2

You see this:

normalcdf(

After that type 

       -3.24,999999999) 

so that you see this on your screen: 

normalcdf(-3.24,999999999)

Then press ENTER and read

.9994022895

When the area is "to the right of", type nine nines,
that is 999999999, for the right bound of the area.

When the area is "to the left of", type a negative
sign and nine nines, -999999999, for the left bound
of the area.

Edwin