HI Eily,
Thank you for your help, but I am a little confused.
I thought I declaring a decimal/float with 0.00 already. And when the loop goes and reads in 900000.00 it is already reading in another decimal or float. The was my thinking anyway, and why I thought I had to change in a decimal/float to a string so I could insert the comma. The idea was to keep the math and decimal in one variable and write out the product to a string.