You may have just pasted your code in a funny way but I noticed your
'if' statement is underneath the rest of your message. Assuming it is in
the correct place and you change "Total[1] - 136.15" to "Total[1] =
136.15" it should work. Also just to let you know that in formcalc you
can use the "$" to reference the field you are in (so you could use $
instead of Total[1] in your formula).