Pastor,
If I were dealing and you were the SB with 100...I'd tell you it is 600 more to call. I know this is not the way it is done outside of the United States, but it's the best way to address the proper amount necessary to compete. Current rules, in my opinion, will cause confusion. For this reason, I do not agree with TDA #43 B Without other clarifying information, declaring raise and an amount is the total bet. Ex: A opens for 2000, B declares “Raise, eight thousand.” The total bet is 8000.
What makes more sense? YOU: "How much is it dealer?" DEALER: "Seven hundred." YOU: "Seven hundred more?" DEALER: "No, six hundred more!" YOU: "Okay, I call." Or...DEALER: "Six hundred more to call."