<<Are you British ?>>
No, I am just old and dumb.
<<What do you mean the March 7th close will be used, the day after tomorrow>>
Well, On my moving averages I subract the difference from the closing number 27 trading days back, so today I will subtract the difference between the closing price on March 3rd and today's close, from my base number. Tomorrow, I will subtract the difference between the March 4th close and tomorrow's close and on Thursday, I will subtract the difference between the March 7th close and Thursday's close. That is how the Moving Average moves.
Jim